A concerning discovery from a sweeping study of bird behavior across North America indicates a critical mismatch in our ecosystems. Scientists are finding that many bird species, despite their efforts ...

North American migratory birds are becoming smaller as the planet warms due to climate change, a new study finds. ... Smithsonian Magazine, Scientific American, Popular Mechanics and more.

In 2020, the American Ornithological Society dubbed this bird, formerly named for a Confederate general, the “thick-billed longspur." Skip Russell via Flickr> under CC BY-NC-ND 2.0 DEED Starting ...

North American bird populations are shrinking most rapidly in the very areas where they are still most abundant, according to a new study leveraging citizen science data for nearly 500 bird species.

North America’s grassland birds are deeply in trouble 50 years after adoption of the Endangered Species Act, with numbers plunging as habitat loss, land degradation and climate change threaten ...

Off-screen, North American birds are fighting for their lives amid rapid population decline. A 2019 study found that the population of North America's birds had dropped by 30%, or 2.9 billion ...

Since last week, 16 species of North American land birds have been spotted in Britain and Ireland, including several species of warblers, one northern parula, 10 cliff swallows and three Baltimore ...

A new study reveals North American bird populations are declining, especially in their traditional habitats, due to rapid environmental changes like climate change. Researchers analyzed vast eBird ...

Three out of every four of the 500 North American bird species are in decline, a recent study found. But unlike the mass extinctions that killed off the dinosaurs, this one is driven by us.

In “The Birds That Audubon Missed,” Kenn Kaufman delves into the fierce, at times unethical, competition among early American ornithologists.