Difference between revisions of "Field Guide/Birds/Columba livia"

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<table border="1" cellspacing="0" align="right" cellpadding="2" style = "margin-left: 0.5em;"><tr><th align="center" bgcolor=pink>''' Rock Dove'''</th></tr>
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{{Bird id
<tr><td align="center">[[image:pigeon10.jpg]]<br><small>''Rock Dove''</small>
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| name = Rock Pigeon
</td></tr>
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| latin_name = Columba livia
<tr><th bgcolor=pink>{{taxonomy}}</th></tr>
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| level = 4
<tr><td><table align="center">
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| image_1 = Strutting pigeon.gk.jpg
<tr><td>{{regnum}}:</td><td>[[Animal]]ia</td></tr>
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| caption_1 = Rock Pigeon near the shore in Connecticut
<tr><td>{{Phylum}}:</td><td>[[Chordate|Chordata]]</td></tr>
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| image_2 = Rock pigeons on cliffs.jpg
<tr><td>{{Classis}}:</td><td>[[Aves]]</td></tr>
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| caption_2 = Rock Pigeons in their natural habitat
<tr><td>{{Ordo}}:</td><td>[[dove|Columbiformes]]</td></tr>
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| description = The '''Rock Pigeon''' (''Columba livia''), is a member of the bird family Columbidae, doves and pigeons. The bird is also known by the names of '''feral pigeon''' or '''domestic pigeon'''. In common usage, this bird is often simply referred to as the "pigeon".  The species was commonly known as '''Rock Dove''' until the British Ornithologists' Union and the American Ornithologists' Union changed the official English name of the bird in their regions to Rock Pigeon.
<tr><td>{{Familia}}:</td><td>[[Columbidae]]</td></tr>
 
<tr><td>{{Genus}}:</td><td>'''''[[Columba (genus)|Columba]]'''''</td></tr>
 
<tr><td>{{Species}}:</td><td>'''''livia'''''</td></tr>
 
</table>
 
<tr><th align="center" bgcolor="pink">'''[[Binomial name]]'''</th></tr>
 
<tr><th align="center">'''''Columba livia'''''<br>
 
<small>([[Johann Friedrich Gmelin | Gmelin]], [[1789]])</small>
 
</th></tr>
 
</table>
 
The '''Rock Dove''' ('''''Columba livia'''''), or '''feral pigeon''', is a member of the family [[Dove|Columbidae]], Doves and Pigeons. In common usage, this bird is often simply referred to as the "pigeon".  The [[American Ornithologists' Union]] has changed the official popular [[North America]]n name of the bird to '''Rock Pigeon'''.
 
  
The Rock Dove has a restricted natural resident range in western and southern [[Europe]], [[North Africa]] and into southwest [[Asia]]. Its habitat is natural cliffs, usually on coasts. Its domesticated form, the feral pigeon, has been widely introduced elsewhere, and is common, especially in cities, over much of the world. In [[Britain]] and [[Ireland]], the Rock Dove probably only occurs pure in the most remote areas.  
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The Rock Pigeon has a restricted natural resident range in western and southern Europe, North Africa, and into South Asia. Its habitat is natural cliffs, usually on coasts. Its domesticated form, the feral pigeon, has been widely introduced elsewhere, and is common, especially in cities, over much of the world. In Britain, Ireland, and much of its former range, the Rock Pigeon probably only occurs pure in the most remote areas. A Rock Pigeon's life span is anywhere from 3-5 years in the wild to 15 years in captivity, though longer-lived specimens have been reported.
  
The white lower back of the pure Rock Dove is its best character, but the two black bars on its pale grey wings are distinct. The tail is margined with white. It is strong and quick on the wing, dashing out from the sea caves, flying low over the water, its white rump showing well from above.
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The Rock Pigeon is 30-35 cm long with a 62-68 cm wingspan. The white lower back of the pure Rock Pigeon is its best identification character, but the two black bars on its pale grey wings are also distinctive. The tail is margined with white. It is strong and quick on the wing, dashing out from sea caves, flying low over the water, its white rump showing well from above.
  
The head and neck of the mature bird are a darker blue-grey than the back and wings; the lower back is white. The green and lilac or purple patch on the side of the neck is larger than that of the [[Stock Dove]], and the tail is more distinctly banded. Young birds show little lustre and are duller.
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The head and neck of the mature bird are a darker blue-grey than the back and wings; the lower back is white. The green and lilac or purple patch on the side of the neck is larger than that of the Stock Dove, and the tail is more distinctly banded. Young birds show little luster and are duller.  Eye color of the pigeon is generally orange but a few pigeons may have white-grey eyes. The eyelids are orange and are encapsulated in a grey-white eye ring. Feet are red to pink.
  
Little parties will circle over the sea and the cliff tops, when the white under wing is equally conspicuous. In its flight, behaviour, and voice, which is more of a dovecot ''coo'' than the phrase of the [[Wood Pigeon]], it is a typical pigeon. Though fields are visited for grain and green food, it is nowhere so plentiful as to be a pest. Like other pigeons it often drinks.
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When circling overhead, the white under wing of the bird becomes conspicuous. In its flight, behavior, and voice, which is more of a dovecot ''coo'' than the phrase of the Wood Pigeon, it is a typical pigeon. Although it is a relatively strong flier, it also glides frequently, holding its wings in a very pronounced V shape as it does.  Though fields are visited for grain and green food, it is nowhere so plentiful as to be a pest.  
  
The bowing courtship, when the metallic lustre of the neck is fully displayed, often takes place on ledges where [[Guillemot]]s and [[Razorbill]]s sit.
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The nest is usually on a ledge in a cave; it is a slight structure of grass, heather, or seaweed. Like most pigeons it lays two white eggs. The eggs are incubated by both parents for about 18 days.
[[Image:Feral Rock Dove nest with chicks.jpg|thumbnail|300px|Urban feral Rock Dove nest with two nestlings approximately 10 days after hatching.]]
 
  
The nest is usually on a ledge in a cave; it is a slight structure of grass, heather, or seaweed. Like all pigeons it lays two white eggs. The eggs are incubated by both parents for about 18 days.
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The nestling has pale yellow down and a flesh-coloured bill with a dark band. It is tended and fed on "crop milk" like other doves. The fledging period is 30 days.
 
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}}<noinclude>[[Category:Adventist Youth Honors Answer Book/Transcluded Modules|{{FULLCHAPTERNAME}}]]</noinclude>
The nestling has pale yellow down and a flesh coloured bill with a dark band. It is tended and fed on "milk" like other doves. The fledging period is 30 days.
 
 
 
== Domestication ==
 
 
 
Rock Doves have been domesticated for several thousand years, giving rise to the '''domestic pigeon'''. Trained domestic pigeons are able to return to the home loft if released at a location that they have never visited before and that may be up to [[1 E6 m|1000 km]] away. A special breed, called [[homing pigeon]]s has been developed through selective breeding to carry messages and members of this variety of pigeon are still being used in [[pigeon racing]].
 
 
 
Pigeons are also bred for meat and by fanciers to develop many exotic forms. Among  those forms are the [[carrier pigeon]]s, a variety of pigeon with wattles and a unique, almost vertical, stance. (See this external link for [http://members.aol.com/duiven/highlight/carrier/carrier.htm pictures.])
 
 
 
Pigeons' extraordinary navigation abilities are in part due to the fact that they are able to sense the [[Earth's magnetic field]] with tiny magnetic tissues in their head. This is all the more surprising as they are not a [[bird migration|migratory]] species.
 
 
 
Many domestic birds have escaped or been released over the years, and have given rise to the '''feral pigeon'''.  These show a variety of plumages, although some look very like the pure Rock Doves. The scarcity of the pure wild species is due to interbreeding with feral birds.
 
 
 
Domestic pigeons are commonly used in laboratory experiments in biology, medicine and [[cognitive science]]. They have been trained to distinguish between [[cubism|cubist]] and [[impressionism|impressionist]] paintings, for instance. In another project, pigeons were shown to be more effective than humans in spotting shipwreck victims at sea. Current (2004) research in pigeons is widespread, encompassing shape and texture perception, exemplar and prototype memory, category-based and associative concepts, and many more unlisted here.  (See [[Pigeon intelligence]] and [[discrimination abilities of pigeons]].)
 
 
 
=== Feral pigeons in cities ===
 
 
 
[[Image:Pigeon-in-flight-over-asphalt.jpg|thumb|Pigeon in flight]]
 
 
 
Feral pigeons, also called '''city doves''' or '''city pigeons''', find the ledges of high buildings a perfect substitute for sea cliffs, and have become abundant in cities all over the world. Some city squares are famous for them, for example:
 
 
 
*[[Trafalgar Square]] - [[London]]
 
*[[Dam Square]] - [[Amsterdam]]
 
*[[Piazza San Marco]] - [[Venice]]
 
*[[Tasmajdan park]]- [[Belgrade]]
 
 
 
In some cities feeding them is forbidden because of the [[pollution]] they cause and the danger that they spread diseases. Some [[fence]]s and ledges of buildings are equipped with special vertical wires etc. to discourage pigeons from staying there.
 
 
 
See also [[birdfeeding]], [[pigeon sport]].
 
 
 
==External Links==
 
* [http://www.straightdope.com/classics/a1_016 Why do pigeons bob their heads?] (from [[The Straight Dope]])
 
 
 
[[de:Stadttaube]]
 
[[fr:Pigeon biset]]
 
[[nl:rotsduif]]
 
[[pl:Go%C5%82%C4%85b_skalny]]
 
[[sv:Klippduva]]
 
[[fi:Kesykyyhky]]
 

Latest revision as of 19:05, 5 July 2012

Columba livia (Rock Pigeon)
Rock Pigeon near the shore in Connecticut
Rock Pigeons in their natural habitat
Description
The Rock Pigeon (Columba livia), is a member of the bird family Columbidae, doves and pigeons. The bird is also known by the names of feral pigeon or domestic pigeon. In common usage, this bird is often simply referred to as the "pigeon". The species was commonly known as Rock Dove until the British Ornithologists' Union and the American Ornithologists' Union changed the official English name of the bird in their regions to Rock Pigeon.

The Rock Pigeon has a restricted natural resident range in western and southern Europe, North Africa, and into South Asia. Its habitat is natural cliffs, usually on coasts. Its domesticated form, the feral pigeon, has been widely introduced elsewhere, and is common, especially in cities, over much of the world. In Britain, Ireland, and much of its former range, the Rock Pigeon probably only occurs pure in the most remote areas. A Rock Pigeon's life span is anywhere from 3-5 years in the wild to 15 years in captivity, though longer-lived specimens have been reported.

The Rock Pigeon is 30-35 cm long with a 62-68 cm wingspan. The white lower back of the pure Rock Pigeon is its best identification character, but the two black bars on its pale grey wings are also distinctive. The tail is margined with white. It is strong and quick on the wing, dashing out from sea caves, flying low over the water, its white rump showing well from above.

The head and neck of the mature bird are a darker blue-grey than the back and wings; the lower back is white. The green and lilac or purple patch on the side of the neck is larger than that of the Stock Dove, and the tail is more distinctly banded. Young birds show little luster and are duller. Eye color of the pigeon is generally orange but a few pigeons may have white-grey eyes. The eyelids are orange and are encapsulated in a grey-white eye ring. Feet are red to pink.

When circling overhead, the white under wing of the bird becomes conspicuous. In its flight, behavior, and voice, which is more of a dovecot coo than the phrase of the Wood Pigeon, it is a typical pigeon. Although it is a relatively strong flier, it also glides frequently, holding its wings in a very pronounced V shape as it does. Though fields are visited for grain and green food, it is nowhere so plentiful as to be a pest.

The nest is usually on a ledge in a cave; it is a slight structure of grass, heather, or seaweed. Like most pigeons it lays two white eggs. The eggs are incubated by both parents for about 18 days.

The nestling has pale yellow down and a flesh-coloured bill with a dark band. It is tended and fed on "crop milk" like other doves. The fledging period is 30 days.