Bird

A citizen-science collaboration in New York has turned up a half-dozen birds infected with the avian flu virus.

What new research on the avian brain and REM sleep in birds might reveal about our own dream lives.

In February, Peter Kaestner beat out the competition to document his 10,000th bird species.

The American tropics are uniquely blessed with birds. Thirty-six percent of the world’s 11,000 bird species live in the region…

A green honeycreeper spotted on a farm in Colombia exhibits a rare biological phenomenon known as bilateral gynandromorphism.

The company, once a high-flying start-up whose services were hailed as the next big thing in personal transportation, lost much…

The virus, which recently reached the Antarctic region for the first time, is surging again in North America.

When Bill Hartline bought 50 acres of forested land outside Muncy, Pa., he was looking for a bit of solitude…

Goffin’s cockatoos, long known as adept tool users, are the first parrots found to alter their food by dipping it…

In the unequal distribution of birds and other species, ecologists are tracing the impact of bigoted urban policies adopted decades…