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 ...

The smallest bird of prey on the entire African continent, the pygmy falcon weighs about as much as a golf ball. These clever ...

People have always been interested in where wild animals go, especially when they were a primary food source. Now one of the questions is: why are North American grassland bird populations shrinking?