Find out what Project FeederWatch is, its history, and more
Find out how you FeederWatch, when you can FeederWatch, and what you'll need to do to get started
Review these instructions carefully before you count and enter data
Find out about types of feeders and types of foods, and where to place your feeder
Feeding Birds FAQs
Explore the winter distribution, food, and feeder preferences of common feeder birds.
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Unusual Birds Gallery
Find out about bird disease and identifying the signs of bird disease
Sick Birds Gallery
Find out how to identify birds and download identification tools
Learn how to help birds as they seek out food sources, nesting habitat, protection, and more
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Find an article archive packed with lots of great bird study information
Learn about house finch eye disease
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These are exemplary FeederWatchers!
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Cornell Lab of Ornithology feeders
Ontario (winter only)
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Graphs of regional population trends and distributions
Explore papers that have used FeederWatch data
Lab scientists analyze the data submitted by FeederWatch participants.
See birds well outside their winter range submitted to Project FeederWatch.
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Kenneth Heiar
La Porte City, IA, United States
The American Goldfinch is normally a grain eating bird. In my experience I had never seen one of them eating filamentous algae, yet on this occasion I observed a small flock of about ten goldfinches doing just that. Located on a small pond in Iowa, the dense mat of algae supported the goldfinches as they would feed for several minutes at a time.
Week 13: Finches & Friends
American Goldfinches feed on filamentous algae.
They are doing the same at my water garden.
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