Cornell Lab of Ornithology

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Update on Mysterious Bird Deaths

This summer, sick and dying birds were documented in several states in the Mid-Atlantic, Midwest, and South. The main symptom was swollen, crusted-over eyes in fledglings of blue jays, robins, … Read more

Male rose-breasted grosbeak by Michelle Wisniewski

Bird of the Week: Rose-breasted Grosbeak

Glancing out the window at my feeder last weekend, I noticed something unusual: a streaky, buff-breasted, brown bird that was larger—and had a much bigger bill—than the dozen or so … Read more

Snowy owl by Barbara J. Fleming

Bird of the Week: Snowy Owl

With the final Harry Potter movie opening this week, J.K. Rowling fans across the country will once again have their minds on owls. On her website, The Owls of Harry Potter, writer, … Read more

Gray Catbird by Robert Strickland

Bird of the Week: Gray Catbird

Of all the wonderful birds that visit my Washington, DC, Certified Wildlife Habitat® site each summer, my very favorite species is the gray catbird. Mostly slate gray—with a small black … Read more

Canada warber by Darlene Friedman

Bird of the Week: Canada Warbler

Across the United States, tens of thousands of birds that have wintered in Mexico, Latin America and the Caribbean are on the move this month, making their way toward breeding grounds in North … Read more

Male ruby-throated hummingbird by William Heban

Bird of the Week: Ruby-throated Hummingbird

If you live anywhere within the eastern or midwestern part of the country, you already may have spotted your first ruby-throated hummingbird of the season—or maybe not. These tiny jewels … Read more

Arctic Tern by Amber Barger

Bird of the Week: Arctic Tern

The Arctic tern is a “migratory marvel.” In the current issue of National Wildlife,  science writer Jessica Snyder Sachs reports that last year an international team of researchers employed geolocators—tiny … Read more

American robin feeding chicks by Robert Palmer

Bird of the Week: American Robin

It’s finally spring, and no bird symbolizes springtime quite like the American robin. As the soil warms up across much of the country, robins by the dozens are hopping across … Read more