It would be natural to assume that birds fly south for the winter because they want to get away from the cold, but this isn't actually the case. Most birds do perfectly fine in cold weather.

Audubon scientists developed a new framework to understand threats to migratory species and found that birds traversing the ...

The birds are not migratory but nomadic ... Populations of bar-headed geese that breed in the highlands of Central Asia fly south over the Himalaya—honking their way through the rarefied ...