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

A secretive creature observed by Darwin has long since been thought extinct, until observers recently spotted a specimen.

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

Birds are often associated with flight, but not all of them take to the skies. Around 60 species — fewer than 1% of all bird ...