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.
Find out about color and plumage variations, bald heads, and deformed bills
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.
Start here for data entry and personal data review and exploration
Keep live track of your counts using the FeederWatch mobile app
Las Vegas, NV, USA
Seen begging and getting fed by adult House Finch. Seems able to eat and drink and move around normally.
House Finch with large red mass near base of bill
I have several house finches with growths on the top of their head. Is it some kind of pox?
Hi Peggy, It can be impossible to know for sure without testing. Regardless of the disease you may see in your birds, it’s a good idea to take them down and clean them. If you start to see more sick birds, then you may wish to take them down for a week or so to let the sick birds disperse. Keep up a regular cleaning schedule (once every 1-2 weeks) to prevent the spread of disease, even if you see no sick birds at your feeders. You can learn more here.
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