Translations:Adventist Youth Honors Answer Book/Nature/Birds/50/en
From Pathfinder Wiki
(4) How should the feeder be cared for?
Every time you clean the feeder, check for black mold. If you find any, clean the feeder with bleach. Do not clean a feeder with soap (but you can use white vinegar as long as you rinse it thoroughly afterwards). If hummingbirds are not emptying the feeder before the syrup spoils, don't fill it completely next time. Spoiled syrup will appear cloudy and must be discarded - hummers won't eat it.
