The main theory, which went all the way back to Aristotle and ancient Greece, was that birds hibernated during the winter and ...

Read full article: Everything You Need to Know: Caesars Virginia to open doors Tuesday On Thursday night, a large migration of birds will be coming to the Commonwealth. 142 million birds are ...

Seasonal bird migration is a well-known and extensively studied phenomenon involving at least half of all species worldwide. It is a basic survival strategy: birds leave cold areas searching for ...

He is one of 4 billion birds, a great annual river of feathered migration across North America. Midair, he lets out what ornithologists call a nocturnal flight call to communicate with his flock.

How Do Birds Migrate? Autumn is migration season. All over North America and beyond, hundreds of millions of birds are on the move, traveling from their breeding grounds to their wintering grounds.