Find out what Project FeederWatch is, its history, and more
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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
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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Julie Amato
Mountain View, CA, United States
This male house finch visited my feeder site on March 23, 2017. One of his eyes is diseased.
I remove my feeders for a few days, and sterilize them, after sick birds visit. Unfortunately, sick birds have recently become a consistent presence, so I have decided to take down the feeders for several weeks.
Eye problems
house finch with eye disease
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