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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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Cornell Lab of Ornithology feeders
Ontario (winter only)
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Graphs of regional population trends and distributions
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Lab scientists analyze the data submitted by FeederWatch participants.
See birds well outside their winter range submitted to Project FeederWatch.
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Hastings-on-Hudson, NY, USA
Belatedly noticed signs of eye disease in a picture of finch feeding at feeder 2/19/22 along with a couple of sparrows. Didn’t notice anything else at the time, and most other finches I’ve observed seem fine.
Finch with eye disease, 2/19/22, 7:35am, Hastings-on-Hudson, NY
Take down your feeders for a couple of days and clean them to prevent the spread because it is contagious.
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