Anna's hummingbird, a common species of hummingbird native to the western coastal regions of North America. (Gates Dupont/Princeton University) (CN) — Geography, habitat and species composition didn’t ...

A new study finds North American bird populations keep dropping, and that decline is accelerating for many species.

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, ...

Migratory birds that fill North American forests with spring songs depend on Central America’s Five Great Forests far more than most people realize. New research shows these tropical strongholds ...