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
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Learn about house finch eye disease
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Cornell Lab of Ornithology feeders
Ontario (winter only)
See what birds occur the most by region
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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.
Start here for data entry and personal data review and exploration
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Shannon Bushong
Lakewood Village, TX, USA
Eye problems
Grackle Eye Problem
San Antonio TX. A female Great Tail Grackle came to my bird bath 2x today. She had lumpy, wort or tumor like growths around the base of her beak. Her left eye was consumed by the condition. I could only see where the eye aught to be. Is this the same disease that House Finches get? She hung out by the bird bath for over 20 minutes.
Hi Bonnie, Birds can contract a multitude of different diseases. What you’re describing sounds like it could be Avian Pox – so far, only members of the finch family have been reported to get Mycoplasmal conjunctivitis (aka House Finch Eye Disease). Check out our Sick Birds and Bird Diseases page to learn more, and to learn the best way to clean your feeders. Anytime you see a sick bird, it’s best to clean your feeders, and you should continue doing so regularly in order to help prevent the spread of disease.
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