When many migrating birds undertake their arduous flights, they'll often arrange themselves in a V shape, but what drives this distinctive behavior?

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.

Migratory birds change how high they fly over deserts and seas. Wing shape, feather color, and heat all play a role in helping them survive.

BND photojournalist Derik Holtmann recently captured images of a huge flock of birds flying in unison before sunset near Illinois 4 in Mascoutah. A gigantic flock of birds is a familiar site around ...

Migratory birds in V-formations master aerodynamic principles, using air currents from leading birds to conserve energy. Research reveals precise wing positioning and synchronized wingbeats allow ...

A recent question from a reader: How are the major wildfires in the West affecting birds, especially migratory species? This is an excellent question and the search for an answer indicates that we may ...

A raptor flies on a clear day. As the weather gets chillier, birds are migrating, many crossing New Hampshire on their path to warmer climates. Hundreds of thousands of birds – warblers, tanagers, ...

As late summer fades into autumn, Indiana’s skies transform into a living highway. Billions of birds begin their fall migration, heading south on a journey that spans hundreds — or even thousands — of ...