Animal migration has fascinated humans for millennia ... such as the nine-day non-stop flight of the bar-tailed godwit across the Pacific Ocean. Most people think of migration as the seasonal ...

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.

Some birds, like the bar-tailed godwit, have an instinctive ability to migrate at birth. Some, however, must follow their parents to migrate and learn their route for future years.