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| − | <languages /><br />
| + | {{HonorSubpage}} |
| − | <noinclude></noinclude>
| + | {{#vardefine:reqpage|{{#titleparts:{{PAGENAME}}|2}}/Requirements 2}} |
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| − | {{honor_desc/es | |
| − | |stage=00
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| − | |honorname=Huellas de animales
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| − | |skill=1
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| − | |year=1976
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| − | |category=Estudio de la naturaleza
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| − | |authority=Asociación General
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| − | |insignia=Animal_Tracking_Honor.png
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| − | }} | |
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| − | {{Division variant/es|division = Asociación General}} | |
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| − | {{IAConnection/es|[[Investiture_Achievement/Companion/Nature_Study/es|COMPAÑERO Estudio de la naturaleza]]|«Hacer figuras de yeso de tres diferentes huellas de animales.»|Esta especialidad es una elección popular para la especialidad de la categoría de Estudio de la naturaleza de nivel de destreza 1 requerido para los COMPAÑEROS DE EXCURSIONISMO.}}
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| | + | {{ansreq|page={{#var:reqpage}}|num=1}} |
| | <noinclude></noinclude> | | <noinclude></noinclude> |
| − | <section begin="Body" />
| + | <!-- 1. Conocer 10 clases de pistas, entre ellos dos tipos de pistas de aves. Hacer moldes de yeso de cinco de ellas. --> |
| − | {{ansreq|page={{#titleparts:{{PAGENAME}}|2|1}}|num=1}}
| + | {{:AY Honors/Basic Casting Techniques/es}} |
| − | <noinclude></noinclude>
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| − | <!-- 1. Know ten kinds of tracks, including two kinds of bird tracks. Make plaster casts of five. --> | |
| − | {{:Adventist Youth Honors Answer Book/Nature/Animal Tracking/Basic Casting Techniques}} | |
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| − | ===Casting Tracks in Snow=== | + | ===Hacer moldes de pistas en la nieve=== |
| − | Snow is difficult to cast because it is not nearly as firm as mud. Furthermore, plaster generates heat when it is mixed, and this can easily melt the snow surrounding the track. However, tracks are a lot easier to find in the snow, and casting ''can'' be done if you are careful.
| + | Es difícil hacer moldes de La nieve porque no es tan firme como el barro. Además, el yeso genera calor cuando se mezcla y esto fácilmente puede derretir la nieve que rodea la pista. Sin embargo, las pistas son mucho más fáciles de encontrar en la nieve y el molde sí se ''puede'' hacer si se tiene cuidado. |
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| − | If the snow is powdery, spray water on it with a plant mister. Don't overdo it though. Allow the water to freeze, making a much harder surface than the untreated, powdery snow. Then place the ring around the track. To counteract the heat generated by the plaster, store the powdered plaster outside so that it can be cold when you mix it. Use cold water when mixing it, and make it even colder by tossing in a few fists full of snow. Stir the snow around until the water is really cold, but if it does not all melt, scoop it out. Leaving snow in the plaster will cause air bubbles in the final cast. Once the plaster is mixed, carefully pour it in the ring, but ''do not'' pour it directly in the track. Pour it next to the track and let it flow gently into the track itself. The spot where the plaster is poured will very likely leave an impression in the snow, and you do not want that to overlap the track. The mix may take well over an hour to cure, so you might want to leave it for a day. With any luck, you should have a nice cast of your track, though it is not likely to be a nice as the ones you can cast in mud.
| + | {{clear}} |
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| − | If you find these results unsatisfactory, you can purchase a product called ''Snow Print Wax''. This product is marketed to the law enforcement community for forensic track casting (of human foot prints and tire tracks). It is far more expensive than plaster, but is nearly certain to yield superior results. You can also try using joint compound. Joint compound is similar to plaster with two exceptions: it does not generate heat when setting, and it is not nearly as durable once it sets. If you use joint compound, you may wish to pour plaster over the finished cast to get a positive cast. The positive cast made from plaster will be far more durable than the negative original made from joint compound.
| + | {{clear}} |
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| − | ===Identification===
| + | {{clear}} |
| − | Figuring out what kind of animal left the tracks you have found can be difficult for the beginner. Besides just knowing what its tracks look like, it helps to know something of the animal's habits, where it lives, what time of day (or year) it is active, etc.
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| − | [http://www.beartrackersden.com/trackguide2003/trackguide2003.pdf This track guide] is an invaluable resource for identifying tracks. If you find some tracks that have you stumped, take several detailed photographs of them, and post them to an online forum. The Bear-Tracker site (see references section) has an excellent and active forum. When taking pictures, it helps to disable flash, as that tends to fill in and eliminate the shadows - the resulting photo may end up looking like a featureless patch of dirt). Many cameras will automatically lengthen the exposure time to compensate for the lack of flash, and that means you will have to hold the camera impossibly still. A tripod ''really'' helps in this situation.
| + | {{clear}} |
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| − | We now present information on several animals found in North America, including their habits, tracks, and other sign they may leave for the observant tracker to find.
| + | {{clear}} |
| | | | |
| − | ===Mammals===
| + | {{clear}} |
| − | ====Raccoon====
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| − | {{Animal_sign | |
| − | | latin_name = Procyon lotor
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| − | | common_name = Raccoon
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| − | | animal_image = Procyon lotor (Common raccoon).jpg
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| − | | image2 = Mm Fuß.jpg
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| − | | caption2 = Hindfoot
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| − | | image3 = Mm Hand.jpg
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| − | | caption3 = Forefoot
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| − | | track_image = Waschbaer fg01.jpg
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| − | | scat_image = Procyon lotor scat.jpg
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| − | | range_map = Raccoon-range.png
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| − | | description = A raccoon is a nocturnal mammal in the genus Procyon of the Procyonidae family. Raccoons are unusual for their thumbs, which – though not opposable – enable them to open many closed containers such as garbage cans and doors. They are intelligent omnivores with a reputation for being clever and mischievous. Raccoons range from 50 to 100 cm in length (including the tail) and weigh between 4.5 and 16 kg. The raccoon's tail ranges from 20 to 40 cm in length. Male raccoons are generally larger than females.
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| − | Raccoon tracks look like tiny human hands with four fingers and a thumb. The scat is tubular and rounded on the ends, often containing berry seeds. The scat also commonly holds parasites that can be inhaled, so it should not be handled. (Yeah. Right.)
| + | {{clear}} |
| − | | range = North America
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| − | }} | |
| | | | |
| − | ====Rabbits and Hares====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name = Lagomorpha
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| − | | common_name = Rabbits and Hares
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| − | | animal_image = Tochtli-Rabbit-Conejo.jpg
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| − | | track_image = Spar av hare ugglan.gif
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| − | | scat_image = Droppings feral rabbit.jpg
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| − | | scat_caption = Dropping from a feral rabbit
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| − | | range = Many parts of the world
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| − | | order = Lagomorpha
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| − | | description = There are several types of rabbits that leave this type of track, including the Eastern Cottontail (shown), Desert Hare, New England Cottontail, Pikas, and many others.
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| − | Note that the prints in the front (top of the diagram) are from the hind legs, while the forefeet leave the two aligned prints in the rear. As a rabbit hops, it throws its forelegs between its hind legs, thus leaving the print as shown.
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| − | }} | |
| | | | |
| − | ====Deer ====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name = Odocoileus spp.
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| − | | common_name = Deer, various species
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| − | | animal_image = White-tailed_deer.jpg
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| − | | animal_caption = White-tail deer
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| − | | image2 = Caribou.jpg
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| − | | caption2 = Caribou
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| − | | track_image = Whitetail_track.svg
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| − | | scat_image = Deer feces.jpg
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| − | | description = A deer is a ruminant mammal belonging to the family Cervidae. A number of broadly similar animals from related families within the order Artiodactyla (even-toed ungulates) are often also called deer. Male deer grow and shed new antlers each year.
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| − | The deer that left the scat depicted above had been eating food high in water content causing the dung to clump together. When the diet consists of drier foods, the dung forms pellets similar to, but smaller than that of the moose (see below).
| + | {{clear}} |
| − | | range = Deer are widely distributed, and hunted, with indigenous representatives in all continents except Antarctica and Australia, though Africa has only one native species confined to the Atlas Mountains in the northwest of the continent, the Red Deer.
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| − | }} | |
| | | | |
| − | ====Moose====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Alces alces
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| − | | common_name =Moose
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| − | | animal_image =Lonesome-Lake-Moose.jpg
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| − | | animal_caption =
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| − | | track_image =1. Footprint from alces alces - 26.04.2008.jpg
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| − | | track_caption = Print from a female moose.
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| − | | scat_image =Alces alces scat.jpg
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| − | | scat_caption =Each dropping is about {{units|2.5cm|1 inch}} long.
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| − | | range_map = Moose distribution.png
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| − | | range = Moose typically inhabit boreal and mixed deciduous forests of the Northern Hemisphere in temperate to subarctic climates. In North America, that includes almost all of Canada, most of central and western Alaska, much of New England, the upper Rocky Mountains, Northeastern Minnesota, and Michigan's Upper Peninsula and Isle Royale in Lake Superior. Isolated moose populations have been verified as far south as the mountains of Utah and Colorado.
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| − | | description =Moose (Alces alces) is the North American name for the largest extant species in the deer family. The same animal is called the Elk in Europe. Moose are distinguished by the palmate antlers of the males; other members of the family have antlers with a "twig-like" configuration. On average, an adult moose stands {{units|1.8–2.1 m|6–7 ft}} high at the shoulder. Males weigh {{units|380–535 kg|850–1180 pounds}} and females weigh {{units|270–360 kg|600–800 pounds}}.
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| − | Moose prints are large, measuring {{units|12-20 cm|5-8 inches}} long. They are very similar to deer tracks (they are a species of deer), but the hind toes do not print. The tracker was able to tell that the print shown above was made by a female because it was accompanied by the smaller prints of her calf. Bull moose are solitary animals and do not associate with the calves.
| + | {{clear}} |
| − | }} | |
| | | | |
| − | ====Bear====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Ursus spp.
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| − | | common_name =Bear, various species
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| − | | animal_image =BlackBear2.jpg
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| − | | animal_caption = American Black Bear (''Ursus americanus'')
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| − | | image2 = Bear paw.jpg
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| − | | caption2 = Bear paw
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| − | | track_image =Bear-footprint.jpg
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| − | | scat_image =Black bear scat.jpg
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| − | | scat_caption =Black bear scat
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| − | | range = Although there are only eight living species of bear, they are widespread, appearing in a wide variety of habitats throughout the Northern Hemisphere and partially in the Southern Hemisphere.
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| − | | description =Common characteristics of modern bears include a large body with stocky legs, a long snout, shaggy hair, paws with five nonretractile claws, and a short tail. While the polar bear is mostly carnivorous and the giant panda feeds almost entirely on bamboo, the remaining six species are omnivorous, with largely varied diets including both plants and animals.
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| − | Bear tracks are large, being about the same length of a full-grown man's foot (or longer), and about twice as wide. They have five toes. Sometimes the claws will print, but not always.
| + | {{clear}} |
| − | }} | |
| | | | |
| − | ====Beaver====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Castor canadensis
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| − | | common_name =Beaver
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| − | | animal_image =Castor canadensis.jpg
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| − | | animal_caption =
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| − | | track_image =Beavertracks.JPG
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| − | | track_caption =Beaver tracks in snow, in Ontario. Hind paws approx. 20 cm long.
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| − | | scat_image =
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| − | | scat_caption =
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| − | | image2 = Beaver trail.jpg
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| − | | caption2 = Trail made by beavers
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| − | | image3 = BurnabyLakeBeaverLodge.JPG
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| − | | caption3 = Beaver lodge
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| − | | range =Native to North America and Europe.
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| − | | description =
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| − | Beavers are best known for their natural trait of building dams in rivers and streams, and building their homes (known as beaver lodges) in the resulting pond. Beaver sign is usually quite obvious as they cause tremendous changes in their environments, from building ponds and lodges, to cutting down even very large trees, to storing young branches in the mud. In the image shown here, beavers have worn a trail through the brush.
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| − | Beaver scat is extremely difficult to find, as they have a habit of eliminating in the water. However, they leave more sign than any other creature except man. Beaver dams, lodges, and cut trees are very obvious signs of their presence.
| + | {{clear}} |
| − | }} | |
| | | | |
| − | ====Canines====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Canidae
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| − | | common_name =Dogs, wolves, coyotes
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| − | | animal_image =Canis latrans.jpg
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| − | | animal_caption =Coyote (''Canis latrans'')
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| − | | image2 = Border Collie 600.jpg
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| − | | caption2 = Dog (''Canis lupus domesticus'')
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| − | | image3 = CMM MexicanWolf.jpg
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| − | | caption3 = Wolf (''Canis lupus'')
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| − | | track_image = canis lupis track.svg
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| − | | scat_image =
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| − | | range =
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| − | | description = The tracks left by members of the canine family are extremely difficult to tell apart. Their prints consist of four toes and a pad. These animals are unable to retract their claws, so the claw marks usually print.
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| − | }} | |
| | | | |
| − | ====Cat====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Felis silvestris
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| − | | common_name = Cat
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| − | | animal_image = Cat mouth closed.jpg
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| − | | animal_caption =
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| − | | track_image = Cat_track.svg
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| − | | track_caption =
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range =
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| − | | description =This is, of course, the standard house cat. Note that cats have retractable claws, and they retract them when they walk. You should not find any claw marks in a cat track.
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| − | }}
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| − | ====Lynx and Bobcats====
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| − | {{Animal sign
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| − | | latin_name =Lynx spp.
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| − | | common_name = Lynx and Bobcats
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| − | | animal_image =Rotluchs2.jpg
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| − | | animal_caption =
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| − | | track_image =Bobcat tracks in mud.jpg
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| − | | track_caption = Bobcat (''Lynx rufus'') track
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range_map =Lynx range.png
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| − | | range =
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| − | | description =Lynx have short tails and characteristic tufts of black hair on the tip of the ears. They have a ruff under the neck, which has black bars (not very visible), resembling a bow tie. They have large paws padded for walking on snow and long whiskers on the face. The body color varies from light brown to grey; and occasionally, is marked with dark brown spots, especially on the limbs. The tracks of the lynx look almost exactly the same as the tracks of the domestic cat, except that they are larger.
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| − | }} | |
| | | | |
| − | ====Mouse====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Mus musculus
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| − | | common_name =Mouse
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| − | | animal_image =Mouse white background.jpg
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| − | | animal_caption =
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| − | | track_image =Mouse_tracks_in_snow.jpg
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| − | | track_caption = Mouse tracks in snow
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range =
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| − | | description =House mice have an adult body length (nose to base of tail) of 7.5–10 cm and a tail length of 5–10 cm; the weight is typically 10–25 g. They vary from light brown to black, with short hair and a light belly. The ears and tail have little hair. The hind feet are short compared to Apodemus mice, only 15–19 mm long; the normal gait is a run with a stride of about 4.5 cm, though they can jump up to 45 cm. The droppings are blackish, about 3 mm long, and have a strong musty smell. The voice is a high-pitched squeak.
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| − | }} | |
| | | | |
| − | ====Horse====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Equus caballus
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| − | | common_name =Horse
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| − | | animal_image =Tinker Stute.JPG
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| − | | animal_caption =
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| − | | image2 = Horseshoe imprint.jpg
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| − | | caption2 = Horseshoe print
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| − | | track_image =Bare hooves prints.jpg
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| − | | track_caption =Bare hoof prints
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| − | | scat_image =Paardenstalmest Horse manure.jpg
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| − | | scat_caption = Horse scat has a lot of grass and hay fibers.
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| − | | range = Domesticated worldwide
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| − | | description =
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| − | The horse (Equus caballus) is a large odd-toed ungulate mammal, one of ten living species of the family Equidae.
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| − | For centuries horses have been one of the most economically important domesticated animals, especially relied upon for farmwork and for transportation. Their importance declined following the introduction of mechanization.
| + | {{clear}} |
| − | }} | |
| | | | |
| − | ====Pig====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Sus domestica
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| − | | common_name =Pig
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| − | | animal_image =Porcs en llibertat.JPG
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| − | | animal_caption =
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| − | | track_image =Sus.scrofa.tracks.on.snow.jpg
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| − | | track_caption =Pig tracks in snow
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| − | | scat_image =Sus.scrofa.dung.jpg
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| − | | scat_caption =Wild pig dung
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| − | | range = Domesticated world-wide
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| − | | description =A pig has a snout for a nose, small eyes, and a small tail, which may be curly, kinked, or straight. It has a thick body, short legs, and coarse hair. There are four toes on each foot, with the two large middle toes used for walking. All four toes usually print, the the middle ones pointing forward and the on side splaying to the side.
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| − | <br><br>
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| − | Pigs are omnivores, which means that they consume both plants and animals. Pigs will scavenge and have been known to eat any kind of food, including dead insects, worms, tree bark, rotting carcasses, garbage, and even other pigs. In the wild, they are foraging animals, primarily eating leaves and grasses, roots, fruits and flowers.
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| − | }} | |
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| − | ====Squirrels and Chipmunks====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Sciuridae
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| − | | common_name =Squirrels and Chipmunks
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| − | | animal_image =Sciurus carolinensis.jpg
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| − | | animal_caption = Gray Squirrel
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| − | | image2 = EasternChipmunk23.jpg
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| − | | caption2 = Eastern Chipmunk
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| − | | track_image =Chipmunk hindprint.jpg
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| − | | track_caption = Hind print (five toes) of a chipmunk (''Tamias striatus'').
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| − | | image3 = squirrel_tracks_in_snow.jpg
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| − | | caption3 = Squirrel tracks in snow
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range =Sciurids live in almost every habitat from tropical rain forest to semiarid desert, avoiding only the high polar regions and the driest of deserts.
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| − | | description =The hindlimbs of sciurids are generally longer than the forelimbs. They have four toes on the forefeet and five toes on the hindfeet. The paws on the forefeet include a thumb, although this is often poorly developed. The feet of sciurids also have a soft pad on the underside. The front paws almost always print side-by-side behind and between the rear paws. Contrast with rabbit tracks in which the front paws print one behind another (but still behind and between the rear paws).
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| − | }} | |
| | | | |
| − | ====Puma====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Puma concolor
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| − | | common_name =Mountain Lion, Puma
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| − | | animal_image =Cougar snow.jpg
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| − | | animal_caption =
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| − | | track_image =Cougar track.jpg
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| − | | track_caption = Cougar track in snow
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range_map = Puma range.png
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| − | | range =This large, solitary cat has the greatest range of any wild terrestrial mammal in the Western Hemisphere, extending from Yukon in Canada to the southern Andes of South America. An adaptable, generalist species, the cougar is found in every major New World habitat type.
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| − | | description =A capable stalk-and-ambush predator, the cougar pursues a wide variety of prey. Primary food sources include ungulates such as deer and bighorn sheep, as well as domestic cattle, horses, and sheep, particularly in the northern part of its range, but it hunts species as small as insects and rodents. It prefers habitats with dense underbrush and rocky areas for stalking, but it can live in open areas. The cougar is territorial and persists at low population densities. Individual territory sizes depend on terrain, vegetation, and abundance of prey. While it is a large predator, it is not always the dominant species in its range, as when it competes for prey with animals such as the gray wolf, black bear, and the grizzly bear. It is a reclusive cat and usually avoids people.
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| − | }} | |
| | | | |
| − | ====Opossum====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Didelphis virginiana
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| − | | common_name =Opossum
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| − | | animal_image =AwesomePossum-AmericanOpossum.jpg
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| − | | animal_caption =
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| − | | track_image = Opossum and vole tracks in mud.JPG
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| − | | track_caption = Track<br>(courtesy [[w:User:Lensim|Lensim]])
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range =
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| − | | description = Opossums are small to medium-sized marsupials, with the largest about the size of a large house cat, and the smallest the size of a mouse. They tend to be semi-arboreal omnivores, although there are many exceptions. They have a plantigrade stance (feet flat on the ground) and the hind feet have an opposable digit with no claw.
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| − | <br><br>
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| − | Virginia Opossum tracks generally show five finger-like toes in both the fore and hind prints. The hind tracks are unusual and distinctive due to the opossum's opposable thumb, which generally prints at an angle of 90 degrees or greater to the other fingers (sometimes near 180 degrees). Individual adult tracks generally measure 1⅞ inches long by 2 inches wide (4.8 × 5.1 cm) for the fore prints and 2½ inches long by 2¼ inches wide (6.4 × 5.7 cm) for the hind prints. Opossums have claws on all fingers fore and hind except on the two thumbs (in the photograph, claw marks show as small holes just beyond the tip of each finger); these generally show in the tracks but may not. In a soft medium, such as the mud in this photograph, the foot pads will clearly show (these are the deep, darker areas where the fingers and toes meet the rest of the hand or foot, which have been filled with plant debris by wind due to the advanced age of the tracks).
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| − | The tracks in the photograph were made while the opossum was walking with its typical pacing gait. The four aligned toes on the hind print show the approximate direction of travel.
| + | {{clear}} |
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| − | }} | + | {{clear}} |
| | | | |
| − | ====Porcupine====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Erethizon dorsatum
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| − | | common_name =Porcupine
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| − | | animal_image =Porcupine NPS11952.jpg
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| − | | animal_caption =
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| − | | track_image =Porcupine tracks.png
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| − | | track_caption =
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range =This animal is usually found in coniferous and mixed forested areas in Canada, Alaska and much of the northern and western United States. They are also found in thicketed areas in shrublands, tundra and deserts as far south as northern Mexico. It makes its den in a hole in a tree or in a rocky area.
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| − | | description =Porcupines are usually dark brown or black, with white highlights. They have a chunky body, a small face, short legs and a short thick tail. Their upper parts are covered with thousands of sharp, barbed hollow spines or quills, which are used for defense. Porcupines do not throw their quills, but the quills detach easily and the barbs make them difficult to remove once lodged in an attacker. The quills are normally flattened against to the body unless the animal is disturbed. The porcupine also swings its quilled tail towards a perceived threat.
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| − | <br>
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| − | Porcupines are mainly active at night; on summer days, they often rest in trees. During the summer, they eat twigs, roots, stems, berries and other vegetation. In the winter, they mainly eat conifer needles and tree bark. They do not hibernate but sleep a lot and stay close to their dens in winter. The strength of the porcupine's defense has given it the ability to live a solitary life, unlike many herbivores.
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| − | <br>
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| − | Porcupine tracks are distinctive, with five toes printing on the hindfeet and four printing on the forefeet. Their tracks have a pebbly texture to them. Often quills on the belly and the tail will leave brush marks along the trail.
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| − | }} | |
| | | | |
| − | ====Skunk====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Mephitis mephitis
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| − | | common_name =Skunk
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| − | | animal_image =Striped skunk.jpg
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| − | | animal_caption =
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| − | | track_image =Polecat Tracks.jpg
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| − | | track_caption =
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range =Most of the North American continent north of Mexico
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| − | | description =The Striped Skunk has a black body with a white stripe along each side of its body; the two stripes join into a broader white area at the nape. Its forehead has a narrow white stripe. About the size of a house cat, it weighs 6 to 14 pounds (2.7-6.3 kg) with a body length (excluding the tail) of 13 to 18 inches (33-46 cm). The bushy tail is 7 to 10 inches long (18-25 cm), and sometimes has a white tip. The presence of a Striped Skunk is often first made apparent by its odor. It has well-developed anal scent glands (characteristic of all skunks) that can emit a highly unpleasant odor when the skunk feels threatened by another animal. The skunk is primarily nocturnal. Beginning its search for food shortly after sundown, it feeds on mice, eggs, carrion, insects, grubs, and berries. At sunrise, it retires to its den, which may be in a ground burrow, or beneath a building, boulder, or rock pile. While the male dens by itself, several females may live together. The Striped Skunk does not hibernate.
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| − | }} | |
| | | | |
| − | ====Weasels, minks, fishers, and otters====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Mustelidae
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| − | | common_name =Weasels, minks, fishers, and otters
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| − | | animal_image =Mink-mustella-vison.jpg
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| − | | animal_caption = Mink (''Mustela vison'')
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| − | | image2=Otters in Wellington Zoo.jpg
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| − | | caption2 = Otters (''Lutrinae'')
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| − | | track_image =Martes.martes.tracks.on.snow.jpg
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| − | | track_caption = Pine Martin (''Martes martes'') tracks in snow
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| − | | scat_image =Excrementos de nutria.001.JPG
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| − | | scat_caption = Otter scat
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| − | | range = Worldwide
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| − | | description =
| |
| − | ;Mink: Their long slim body is covered in glossy, thick dark brown or black fur with a white patch under the chin. They have short legs with partially webbed feet, which make them excellent swimmers. They can be found in wooded areas and fields near streams and lakes. They dig burrows in river banks or take over dens abandoned by other animals. They feed on small mammals, fish, crayfish, frogs and other amphibians, also sometimes eating birds, insects and earthworms. These animals are mainly active at night and do not hibernate.
| |
| − | ;Otter: [[W:Lutrinae|Otters]] have a dense layer (1,000 hairs/mm², 650,000 hairs per sq. in) of very soft underfur which, protected by their outer layer of long guard hairs, keeps them dry under water and traps a layer of air to keep them warm.
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| | | | |
| − | :All otters have long, slim, streamlined bodies of extraordinary grace and flexibility, and short limbs; in most cases they have webbed paws. Most have sharp claws to grasp prey, but the short-clawed otter of southern Asia has only vestigial claws, and two closely-related species of African otter have no claws at all: these species live in the often muddy rivers of Africa and Asia and locate their prey by touch.
| + | {{clear}} |
| | | | |
| − | ;Weasels: Weasels vary in length from 15 to 35 centimeters (6 to 14 inches), and usually have a light brown upper coat, white belly and black fur at the tip of the tail; in many species, populations living at high latitudes moult to a white coat with black fur at the tip of the tail in winter. They have long slender bodies, which enable them to follow their prey into burrows. Their tails are typically almost as long as the rest of their bodies. As is typical of small carnivores, weasels have a reputation for cleverness and guile. They also have tails that can be any where from 22-33cm long and they use these to defend the food they get and to claim territory from other weasels.
| + | {{clear}} |
| − | }} | |
| | | | |
| − | ===Reptiles and Amphibians===
| + | {{clear}} |
| − | ====Snakes====
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| − | {{Animal sign | |
| − | | latin_name =Serpentes
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| − | | common_name =Snake
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| − | | animal_image =Garter Snake.jpg
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| − | | animal_caption = Garter snake
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| − | | track_image =
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| − | | track_caption =
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| − | | scat_image =
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| − | | scat_caption =
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| − | | image2 = Natternhemd.jpg
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| − | | caption2 = Shed skin of a snake
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| − | | range =
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| − | | description = Snakes leave tracks that can be wavy or straight. Their prints are little furrows that are a half inch wide or more, but it may be difficult the recognize them. Snakes shed as they grow, and you can sometimes find their castoff skins.
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| | | | |
| − | }} | + | {{clear}} |
| | | | |
| − | ====Frogs====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name = Anura
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| − | | common_name =Frogs and Toads
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| − | | animal_image =Bullfrog 001-.jpg
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| − | | animal_caption =''Lithobates catesbeianus'' (American Bullfrog)
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| − | | track_image = Rana clamitans track.jpg
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| − | | track_caption = Green frog, hind foot print
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| − | | scat_image =
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| − | | scat_caption =
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| − | | image2 = Bufo americanusPCCA20060417-3345B.jpg
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| − | | caption2 = American Toad
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| − | | image3 = Rana clamitans 7470.jpg
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| − | | caption3 = ''Rana clamitans'' (Green Frog)
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| − | | range = The distribution of frogs ranges from tropic to subarctic regions, but most species are found in tropical rain forests. Consisting of more than 5,000 species described, they are among the most diverse groups of vertebrates.
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| − | | description = Adult frogs are characterized by long hind legs, a short body, webbed digits, protruding eyes and the absence of a tail. Most frogs have a semi-aquatic lifestyle, but move easily on land by jumping or climbing. They typically lay their eggs in puddles, ponds or lakes; and their larvae, called tadpoles, have gills and develop in water. Adult frogs follow a carnivorous diet, mostly of arthropods, annelids and gastropods. Frogs are most noticeable by their call, which can be widely heard during the night or day, mainly in their mating season.
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| − | }} | |
| | | | |
| − | ====Turtles====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Testudines
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| − | | common_name =Turtle
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| − | | animal_image =Caretta caretta 060417w2.jpg
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| − | | animal_caption =Loggerhead Turtle
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| − | | track_image =Footprint of Loggerhead Sea Turtle.jpg
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| − | | track_caption =Tracks of a Loggerhead Turtle
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| − | | scat_image =
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| − | | range_map = World.distribution.testudines.1.png
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| − | | scat_caption =
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| − | | range =
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| − | | description =Turtles are reptiles of the Order Testudines (all living turtles belong to the crown group Chelonia), most of whose body is shielded by a special bony or cartilaginous shell developed from their ribs. The Order Testudines includes both extant (living) and extinct species.
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| − | }} | |
| | | | |
| − | ===Birds===
| + | {{clear}} |
| − | ====Crows and Ravens====
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| − | {{Animal sign | |
| − | | latin_name = Corvus spp.
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| − | | common_name =Crows and Ravens
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| − | | animal_image =Corvus corax (FWS).jpg
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| − | | animal_caption = Common Raven
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| − | | track_image = Corvus_tracks.png
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| − | | track_caption =
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range_map =
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| − | | range =The 40 or so members of this genus occur on all continents except South America and Antarctica, and on many offshore and oceanic islands.
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| − | | description =The genus Corvus consists of large Passerine birds. They are either black all over, or mainly black with white or grey patches. They range in size from the relatively small jackdaws (still larger than most other passerines) to the very large Common Raven of the Holarctic region and Thick-billed Raven of the highlands of Ethiopia. <br><br>
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| − | Crows have three toes that point forward and one that points backwards. The front middle toe curves inward and like the rear toe, is longer than the two on the side. The tracks are typically between {{units|5-8cm|2-3 inches}} long and {{units|10 cm|4 inches}} apart. Crows often drag their feet when they walk, so you may find the drag marks as part of the track. Their talons (claws) may also print. Their foot prints will alternate, as their gait is somewhat human-like.
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| − | }} | |
| | | | |
| − | ====American Robin====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name = Turdus migratorius
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| − | | common_name =American Robin
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| − | | animal_image =Turdus-migratorius-002.jpg
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| − | | animal_caption =
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| − | | image2 = American Robin nest and eggs.JPG
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| − | | caption2 = Nest and eggs
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| − | | track_image =Turdus migratorius tracks.jpg
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| − | | track_caption =
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range_map=American Robin-rangemap.gif
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| − | | range =The American Robin is widely distributed throughout North America, wintering south of Canada from Florida to central Mexico and along the Pacific Coast.
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| − | | description =The American Robin is active mostly during the day and assembles in large flocks at night. Its diet consists of invertebrates (such as beetle grubs and caterpillars), fruits and berries. It is one of the first bird species to lay eggs, beginning to breed shortly after returning to its summer range from its winter range.
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| − | }} | |
| | | | |
| − | ====Pigeons and Doves====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Columbidae
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| − | | common_name =Pigeons and Doves
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| − | | animal_image =Blue Rock Pigeon (Columba livia) in Kolkata I IMG 9762.jpg
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| − | | animal_caption =Blue Rock Pigeon
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| − | | track_image =Columba livia tracks.jpg
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| − | | track_caption =
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range =This family occurs worldwide, but the greatest variety is in the Indomalaya and Australasia ecozones.
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| − | | description =Pigeons and doves constitute the family Columbidae within the order Columbiformes, which include some 300 species of near passerine birds. In general parlance the terms "dove" and "pigeon" are used somewhat interchangeably.<br><br>
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| | | | |
| − | A good place to find pigeon tracks is beneath an overpass. Pigeons love to nest on the girders of bridges, and the ground underneath is often bare and powdery, so it takes tracks well. They leave copious amounts of guano (bird scat) beneath their roosts as well. Be careful of traffic.
| + | {{clear}} |
| − | }} | |
| | | | |
| − | ====Heron====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Ardeidae
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| − | | common_name =Heron
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| − | | animal_image = Le Grand Heron.jpg
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| − | | animal_caption = Great Blue Heron
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| − | | track_image =Heron trail.jpg
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| − | | track_caption =
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| − | | image2 = Egretta thula1.jpg
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| − | | caption2 = Snowy Egret
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range =
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| − | | description =The herons are wading birds in the Ardeidae family. Some are called egrets or bitterns instead of herons. The Great Blue Heron's tracks are {{units|15-20 cm|6-8 inches}} long. These brds tend to walk along the edge of the shore, either in the water, or on the land. Tracks in the water can be successfully cast if using plaster.
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| − | }} | |
| | | | |
| − | ====Herring Gull====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Larus argentatus
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| − | | common_name =Herring Gull
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| − | | animal_image =Larus argentatus01.jpg
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| − | | animal_caption =
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| − | | image2 = Oeufs goeland argenté.jpg
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| − | | caption2 = eggs
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| − | | track_image =Larus argentatus track 7105.JPG
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| − | | track_caption =
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range =It breeds across North America, Europe and Asia.
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| − | | description =The average Herring Gull is 55-66 cm (22-26 inches) long with a wingspan of 138-150 cm. Adults in breeding plumage have a grey back and upperwings and white head and underparts. The wingtips are black with white spots known as "mirrors".
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| − | <br>
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| − | Herring gulls have webbed feet.
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| − | }} | |
| | | | |
| − | ====Canada Goose====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Branta canadensis
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| − | | common_name =Canada Goose
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| − | | animal_image =Canada goose reflection 03.jpg
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| − | | animal_caption =
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| − | | track_image =Branta canadensis track.jpg
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| − | | track_caption =
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| − | | scat_image = Goose scat.jpg
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| − | | scat_caption =
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| − | | range_map = Branta canadensis map.png
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| − | | range =
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| − | | description =This species is native to North America. It breeds in Canada and the northern United States in a variety of habitats. Its nest is usually located in an elevated area near water, sometimes on a beaver lodge. Its eggs are laid in a shallow depression lined with plant material and down. The Great Lakes region maintains a very large population of Canada Geese.
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| − | }} | |
| | | | |
| − | ====Duck====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Anatidae
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| − | | common_name =Duck
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| − | | animal_image =Ducks in plymouth, massachusetts.jpg
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| − | | animal_caption = A duck (female) and a drake (male) Mallard
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| − | | image2 = Northern Pintails (Male & Female) I IMG 0911.jpg
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| − | | caption2 = Northern pintails (male & female)
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| − | | image3 = Duck track 7999.jpg
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| − | | caption3 = Track photo
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| − | | track_image =Tracks duck.gif
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| − | | track_caption = Track illustration
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range =
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| − | | description =Ducks are mostly aquatic birds, mostly smaller than their relatives the swans and geese, and may be found in both fresh water and sea water. Ducks are sometimes confused with several types of unrelated water birds with similar forms, such as loons or divers, grebes, gallinules, and coots.
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| − | }} | |
| | | | |
| − | ====Grouse====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Tetraoninae
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| − | | common_name =Grouse
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| − | | animal_image =Black Grouse.jpg
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| − | | animal_caption =Black Grouse
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| − | | image2 =
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| − | | caption2 = Blue grouse
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| − | | track_image =Grouse wing prints in snow.jpg
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| − | | track_caption = Grouse wing prints in snow
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| − | | scat_image =Black Grouse droppings.jpg
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| − | | scat_caption =Black Grouse droppings
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| − | | range =Grouse inhabit temperate and subarctic regions of the northern hemisphere. Most species are year-round residents, and do not migrate.
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| − | | description =Grouse are a group of birds from the order Galliformes. Often considered a family Tetraonidae, the American Ornithologists' Union and many others include grouse as a subfamily Tetraoninae in the family Phasianidae.
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| | | | |
| − | These birds feed mainly on vegetation, but also on insects, especially when feeding young. Several of the forest-living species are notable for eating large quantities of conifer needles, which most other vertebrates refuse. In all but one species (the Willow Grouse, called Willow Ptarmigan in America), males are polygamous, and many species have elaborate courtship displays. These heavily built birds have legs feathered to the toes.
| + | {{clear}} |
| − | }} | |
| | | | |
| − | ====Turkey====
| + | {{clear}} |
| − | {{Animal sign | |
| − | | latin_name =Meleagris gallopavo
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| − | | common_name =Turkey
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| − | | animal_image =Wild turkey eastern us.jpg
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| − | | animal_caption =
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| − | | image2 = Turkey Feet.jpg
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| − | | caption2 = Turkey Feet
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| − | | track_image =Turkey track.png
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| − | | track_caption =
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| − | | scat_image =
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| − | | scat_caption =
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| − | | range = North America
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| − | | description =Adult Wild Turkeys have a small, featherless, reddish head, that can change to blue in minutes; a red throat in males; long reddish-orange to greyish-blue legs; and a dark-brown to black body.
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| | | | |
| − | Turkeys typically print three of their four toes. The three toes that print point forward and fan out. A dot made by their metatarsal prints where the three toes come together. Sometimes the fourth toe will print too, extending from the metatarsal print towards the back. Sometimes the claws will also print. If made in soft mud you may be able to make out the pebbly texture of the foot in the track.
| + | {{clear}} |
| − | }} | |
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| − | <!-- 2. Name at least three things that tracks tell us. --> | + | <!-- 2. Nombrar al menos tres cosas que dicen las pistas. --> |
| − | Animal tracks can tell us many things about the animal that made them, including:
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| − | # The species
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| − | # Its direction of travel
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| − | # How fast it was going
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| − | # How large it was
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| − | # How long ago the animal made the tracks.
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| − | # Sometimes tracks can tell the gender of the animal
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| − | # Sometimes tracks can tell us the animal's age.
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| − | <!-- 3. Trail some animal tracks, identify the animal if possible, and tell whether it was running or walking. Measure between the tracks of one animal when running and walking. --> | + | <!-- 3. Rastrear algunas pistas de animales, identificar al animal si es posible y decir si estaba corriendo o caminando. Tomar la medida entre las huellas de un animal cuando corre y cuando camina. --> |
| − | ===Trailing and Identifying===
| |
| − | This is a perfect activity for an afternoon hike during a campout. Bring a tape measure so that you can measure the tracks. Bring some powdered plaster of Paris, and a mixing bowl so that you can make casts. You can also bring water, though it is better to keep that for ''drinking'' rather than mixing with plaster. You can probably find some water along the way, but just to make sure, you should bring ''some'' water for the plaster. You can refill a bottle for plaster making without treating it as long as you make it obvious that it is not fit for drinking (mud is a good indicator).
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| | | | |
| − | Instruct your Pathfinders that they are to look for animal tracks along the way. When they find some (or when you do), try to figure out the species by comparing the track to those in a field guide or those depicted in the answers to requirement one. See if you can find more tracks nearby. Which way was the animal moving? How far can you track it?
| + | {{clear}} |
| | | | |
| − | ===Walking vs Running===
| + | {{clear}} |
| − | If the tracks are far apart relative to the size of the animal, it was most likely running. Another indicator of running is that the tracks are deeper than those made by a walking creature (running makes the feet strike the ground with greater force).
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| − | ===Measuring Tracks===
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| − | There is nothing in this requirement to suggest that the tracks of one animal made while running and walking has to be a wild animal, or even that you have to find a set of tracks like these pre-made. If you or a person in your group, or a person you know has a dog, take it to a sandy area and have it walk and run. Then get a tape measure and determine the distance between the tracks.
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| | | | |
| − | You can also do this in a parking lot, but in order for the dog to leave tracks, you will need to dip its feet in tempera paint (which is non-toxic and water soluble). It is best to pour some paint in a paper plate. Use two colors - one for the front feet, and one for the back. This will make it a lot easier to tell the front prints from the hind. Lift the dog, and have a helper wet the dog's pads. Then put the dog down and walk it (use a leash). Re-apply the paint, and then allow the dog to run. You should now have two sets of prints from a single animal. Get out a tape measure, and take the measurements.
| + | {{clear}} |
| | | | |
| − | The standard way to do this is to measure the distance between tracks made by the same foot. The distance between the left rear and the right front is almost meaningless.
| + | {{clear}} |
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| − | <!-- 4. Maintain a tracking station for at least three days by doing the following: --> | + | <!-- 4. Mantener una estación de seguimiento durante al menos tres días haciendo lo siguiente: --> |
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| − | Do not select a space ''too'' close to your campsite, because you do not want to attract them into your camp. Animals need water, so a really good place to select is around a source of fresh water. River banks, stream banks, near ponds, and the shores of lakes are all good places to find animal tracks. Pigeons often congregate under bridges or parking garages, so that is another good option. However, the place you select must be quiet. Avoid places that are frequented by people.
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| − | There may already be some tracks in the area, but you are interested in fresh tracks. Smoothing the ground erases them and allows for fresh prints. A mason's trowel works very well for this in mud. You can also use a trowel on sand, but be careful not to pack it down. The smoother you can make the surface, the finer tracks you will be able to see.
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| | | | |
| − | For dirt, it helps if you can sift it onto a flat surface and then lightly wet it. If your garden hose has a "mist" setting, use that after sifting the dirt onto a flat surface.
| + | {{clear}} |
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| − | Some animals can become dangerous if they become habituated to acquiring food from human sources. This is especially true of bears. When this happens, it is often futile to attempt to relocate the animal, as they are very clever and can (and do!) find their way back to their home range. The only way to keep the public safe under these conditions is to destroy the animal. A common saying among wildlife control officers is "a fed bear is a dead bear."
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| − | Furthermore, relocating the animal puts it in a new environment where it does not know where to find the resources it needs to survive, so it may suffer greatly while it adapts, or it may fail to adapt and starve to death.
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| − | Many animals are also territorial, so relocating an animal may put it in conflict with members of its own species. They will attempt to drive the newcomer off, or may even kill it.
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| − | When camping, remember to store your food in a place where the animals cannot get to it. Seal it tightly and place it out of the reach of raccoons and bears (both of which are very clever at getting food). Under no circumstances should you store food in a tent - especially in one that people will be sleeping in. A tent poses no barrier to a hungry skunk.
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| − | The morning is the best time to check for tracks. Most forest creatures are nocturnal, so in the morning the tracks will be freshest. Also, human visitors are less likely to trample the tracks before you get a chance to observe and if necessary, cast them.
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| − | If you wish to photograph your tracks, it's best to do that in the early morning when the sunlight comes in at an angle. If you wait until the sun is high overhead, the track will not cast a shadow and it will be difficult to see. Turn off your camera's flash or it will completely wash out the shadows and the track will not show up in the photo. If you want to experiment with artificial light, use a flashlight to illuminate the track from the side. Place a coin or a ruler (for scale) next to the track before taking the picture. Take lots of photos (digital cameras are ''great'' for this) and hope that at least one of them turns out. It takes a lot of practice!
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| − | <!-- 5. Name two animals for each tracking group. --> | + | <!-- 5. Nombrar dos animales para cada grupo de seguimiento de huellas. --> |
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| − | <!-- 6. Name four signs of the presence of mammals. --> | + | <!-- 6. Nombrar cuatro signos de la presencia de mamíferos. --> |
| − | Animals leave many indications that they were present. These are collectively called ''sign''. Sign includes:
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| − | ;Tracks: Not only footprints, but marks left on the ground by the tail or by other body parts. Beavers, muskrats, mice, and rats all leave tail marks on the ground.
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| − | ;Scat: Scat is another word for animal droppings or manure.
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| − | ;Fur and antlers: Animals may leave bits of fur behind if it gets caught in a tree's bark, or in thorns. In the fall deer drop antlers.
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| − | ;Cuttings: Cuttings are things such as acorn shells which have been nibbled on. Deer and squirrel often leave them behind.
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| − | ;Scratches on trees: Bears, members of the cat family, and other predators will sharpen their claws on tree trunks. Sometimes they will do this to mark their territory. Porcupines will eat the bark all the way around the trunk of a conifer, often killing it.
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| − | ;Damage to trees: beavers especially, but also other animals will damage trees by breaking branches, chewing twigs, and gnawing bark.
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| − | ;Scent Posts: Many animals mark their territory by urinating on trees or other prominent items. If you are walking through the woods and smell a strong musky odor, look around — you may find other sign.
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| − | ;Carcasses: Once a predator has had its fill of a kill, it will leave the carcass. Some animals will guard their carcasses though so they can feed on them again after they've digested some of the previous meal, so be careful if you find one.
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| − | <!-- 7. Distinguish between rabbit and squirrel tracks, and between dog and cat family tracks. --> | + | <!-- 7. Distinguir entre las pistas de conejo y ardilla, y entre pistas de perros y gatos. --> |
| − | ===Rabbit vs Squirrel Tracks===
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| − | Rabbits leave a distinctive pattern when they bound along. The front feet are thrown between the hind feet, but one of them is almost invariably thrown farther back, and the two forefeet often print one behind the other (though sometimes they print side-by-side). A rabbit's hind feet leave larger oval-shaped prints about the size of a man's thumbprint. Since they use the hind feet rather than their forefeet to leap forward, they will push out some material behind them. It may be difficult to make out individual toes in a rabbit print.
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| − | Squirrels are also bounders, and like the rabbit, they throw both forefeet between their hind feet. But unlike the rabbit, the squirrel's forefeet generally print side-by-side. The hind feet should print five toes (four finger-like and one thumb-like) and no claws. The forefeet should print only four toes.
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| − | In general, a rabbit's pads are shaped like an oval while a squirrel's pads are shaped like a human hand.
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| − | If you're lucky enough to find a large set of tracks in the snow, and they lead to the base of a tree, it is almost certainly a squirrel, as rabbits cannot climb trees. The only way a rabbit could leave such a trail is if it had been abducted by aliens (or by an owl!)
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| − | ===Dog vs Cat Tracks===
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| − | Unlike dogs, cats can retract their claws, and they do so when walking. Therefore, you should expect to find claw marks present in dog tracks, but absent in cat tracks. In general dogs tracks are larger than cat tracks, but you cannot rely on this alone, as there are some very small dogs and some very large cats.
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| − | <!-- 8. Name two groups of animals (mammals, birds, insects, etc.) that leave tracks or scent trails that another of their kind can follow. --> | + | <!-- 8. Nombrar dos grupos de animales (mamíferos, aves, insectos, etc.) que dejan pistas o senderos olorosos que otro de su especie puede seguir. --> |
| − | Some species of mammal and some species of insect leave scent trails to communicate with others of their species. Canines, cats, deer, moose, alpaca and llama, and others will mark their territory with urine.
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| − | Ants lay down pheromone trails that lead to food sources. If you have ever seen a column of ants scurrying about in single file, you can be sure they are following a scent trail.
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| − | <!-- 9. Name two birds for each of the following type of tracks: --> | + | <!-- 9. Nombrar dos aves de cada una de los siguientes clases de pistas: --> |
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| − | Most perching birds (passerines) hop, though many can both hop and walk (such as ravens, blackbirds, and robins). Jays, sparrows, cardinals, titmice, nuthatches, finches, and many others hop. The tracks of hopping birds often print side-by-side as they tend to keep their feet together as they hop.
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| − | Walking birds include crows, most waterfowl and shore birds (sandpipers, egrets, herons, etc.), and most game birds (wild turkeys, geese, ducks, grouse, doves, pigeons, etc.). The tracks of walking birds typically alternate left to right as they lift their feet one at a time.
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| − | <!-- 10. Besides tracks, give two other signs of the presence of birds. --> | + | <!-- 10. Además de las pistas, mencionar otros dos signos de la presencia de aves. --> |
| − | * Feathers
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| − | * Droppings
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| − | * Nests
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| − | * Birdsongs (if you can hear them, they must be present!)
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| − | * Eggs or eggshells
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| − | * Pellets: Birds of prey regurgitate the indigestible portions of their meals. Birds have no teeth so they rip their prey apart with their beaks and swallow large chunks at a time. Then they digest the soft portions (such as meat) leaving the hair and bones behind to collect into pellets. They cough up these pellets which can be found by the astute observer.
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| − | <!-- 11. Name two birds identified by their flying patterns. --> | + | <!-- 11. Nombrar dos aves identificadas por sus patrones de vuelo. --> |
| − | <gallery perrow=2 widths="300px">
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| − | Image:Northern Flicker.jpg|'''Northern Flicker:''' Like many woodpeckers, the flicker's flight is undulating. The repeated cycle of a quick succession of flaps followed by a pause creates an effect comparable to a rollercoaster.
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| − | Image:Rubythroathummer65.jpg|'''Hummingbird:''' During hovering, ruby-throated hummingbird wings beat 55 times per second, 61 times per second when moving backwards, and at least 75 times per second when moving forward.
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| − | </gallery>
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| − | Canadian geese can be identified from a great distance by their distinctive V formation.
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| − | <!-- 12. In your area, observe tracks or trail of one or more of the following: --> | + | <!-- 12. En su área, observar las pistas o senderos de uno o varios de los siguientes: --> |
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| − | Tracks for these animals are described in an earlier requirement. Perhaps the easiest of these three to find are the tracks of the frog. Find a pond where frogs live, and smooth the mud as described in requirement 4. Another technique is to visit a frog pond and watch as they leap into the water at your approach. Look carefully at the spot from which they leap, and you may be able to see the track. If you have any Pathfinders brave enough, have one capture a frog, and then gently transport it to a muddy area where it can leave tracks. Put it in the center of this area and observe the tracks it makes. Recapture the frog and return it to its home when you are finished.
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| − | [[Image:Gardensnail.jpg|thumb|200px|left|Snail leaving a trail]]
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| − | [[Image:Mussel_tracks.jpg|thumb|200px|right|Mussel tracks at the edge of a pond.]]
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| − | When most people think of mollusks, they think of clams and mussels. For this honor, it is beneficial to remember that snails and slugs are also members of the mollusk family, especially since they leave easily followed trails.
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| − | The best time to find snail or slug tracks is in the early morning. Look on the sidewalk near flower beds for the tell-tale slimy trails these creatures leave as they slip along. As these slime trails dry, they turn white and flaky, often curling at the edges.
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| − | That said, it is also possible to find the tracks of clams and mussels. The photo on the right shows the tracks left by a mussel in shallow water (about {{units|10 cm|2 inches}} deep) at the edge of a fresh water pond.
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| − | Find a place where you have seen earthworms in the past, preferably where the dirt is bare (i.e., no grass). Soak the area with water to drive the worms out of the ground. Worms need air, so when it rains (or when a Pathfinder soaks the ground with a hose), they will come to the surface. They might not come out immediately, so you should plan to return a day later to look for tracks in the mud you've made.
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| − | [[Image:Maulwurf (Talpa).jpg|thumb|200px|left|Mole atop its mole hill]]
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| − | [[Image:Mole tunnel.jpg|thumb|250px|right|Mole tunnel]]
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| − | Moles are burrowing rodents, and if you have them in your yard, it is not difficult to see where they have been. As they tunnel along, they raise the earth above their tunnels. At the end of the tunnel you may find a hole surrounded by a "mole hill".
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| − | ==References== | + | ==Referencias== |
| − | * http://www.bear-tracker.com/
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| − | * ''The Complete Tracker'' by Len McDougall, 1997. ISBN 156731-326-4
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| − | * [http://mdc.mo.gov/nathis/mammals/autogrph/ Missouri Department of Conservation]
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| − | [[Category:Adventist Youth Honors Answer Book|{{SUBPAGENAME}}]]
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| − | <section end="Body" />
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