Remember when you were a kid and you looked up at the sky to see dozens of geese soaring overhead in a V shape? "Why do they do that?" you probably wondered. Seeing birds — from geese to pelicans and ...

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

The massive annual spring migration of America's birds – millions of them – is underway. Here's how to follow along at home.