Francois Leroy and colleagues have confirmed what field biologists have suspected for years: bird populations across North ...

Since the 1970s, the U.S. has lost billions of birds. We now know that those losses aren't just growing—they are accelerating ...

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

North American bird populations are not just shrinking; they are shrinking faster with each passing decade, and the worst ...

Opinion: An alarming new study documents the accelerating rate of decline in U.S. bird numbers, writes Gerald Winegrad.

Researchers have revealed that North American birds are declining at an accelerating rate in three regional hotspots associated with intense agriculture.

As Congress advances the Farm Bill, strengthening voluntary conservation programs on farms, ranches, and forests is essential ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. The IUCN Red List, which assesses the extinction risk of ...

SALT LAKE CITY — It's about 3 inches long and weighs as much as a penny. But a calliope hummingbird is a tough little bird. It can fly up to 5,600 miles in a year. Despite its tiny stature, the ...

Excavations on Peru's coast reveal pre-Inca parrot husbandry, radiocarbon-dated to 1100-1450, and long-distance transport ...