There are about 10,0000 bird species in the world, about 2,000 of which live in North America. They come in all shapes, sizes, colors and personalities. Northern Cardinals, Bald Eagles, American ...

Meanwhile, the pine siskin, a woodland finch common at backyard bird feeders, fell by more than half to about 22 million birds, the report says. Such drops are relatively recent.

Since 1970, North America’s bird population has decreased by about 30%, with nearly 3 billion birds that used to be in the woods, grasslands and shore now gone, writes Dana Wilde.

North American Birds Declining as Threats Mount. Global warming, habitat loss, ... with gaps in the canopy—a condition not present in even-aged woodland created by modern forestry practices.

Hundreds of North American Birds Face Extinction Due to ... 389 Bird Species on the Brink.” “A lot of people paid attention to last month’s report that North America has lost nearly a third ...

North America’s overall bird population has dropped 29% since 1970, with about 3 billion fewer birds now than nearly 50 years ago, according to a study published Thursday in Science.

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.

Shared morphological consequences of global warming in North American migratory birds, Ecology Letters, published online on 4 December 2019 before print | doi:10.1111/ele.13434 Editorial Standards ...

A male bobolink stands on top of a shrub near its nest, Tuesday, June 20, 2023, in Denton, Neb. North America's grassland birds are deeply in trouble 50 years after adoption of the Endangered ...

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 ...