The dark, smudgy streaks on Xavi Bou's photographs suggest the jerky ink tracks created by a malfunctioning printer, but they actually record the various patterns birds trace while flying in flocks.

Every year, billions of birds around the world take to the skies for their annual migration. It’s truly astonishing as these ...

From geese and pelicans to cranes and cormorants, many birds use a V-shaped flock to master the aerodynamics of long-distance ...

Unexpected bird response: Researchers found city birds allowed men to get about three feet closer before fleeing compared to ...