Many birds don’t look their best by the time autumn migration rolls around. Take the male indigo bunting, for instance. This ...

CHICAGO — August 14, 2025 — The 66th Supplement to the American Ornithological Society’s (AOS’s) Check-list of North American Birds, published today in Ornithology, includes several significant ...

The 66th Supplement to the American Ornithological Society's (AOS) Check-list of North American Birds, published in Ornithology, includes several significant updates to the classification of bird ...

Millions of audio recordings of hundreds of bird species have revealed that artificial light is making the birds wake up ...

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Great egrets and little blue herons. Blue-winged warblers and yellow-bellied sapsuckers. Snowy owls and tropical kingbirds. Across North America, three-fourths of bird species are in decline, ...