Birds are some of the best-known animals in the world. There are around 11,000 recognized species and they’re everywhere; they’re on every continent and live in pretty much every habitat. They range ...

Flock shape, speed and structure are key in deciphering whether radar readouts are birds, bats, insects or weather ...

The thick conifers (left) in this forest may provide Blue Jays with shelter, while the deciduous trees (foreground) may offer woodpecker holes for chickadees and other small birds. BILL DANIELSON / ...