Nature lovers will know the scene well. A flurry of birdsong, a shake of a tree and out pops a flock of birds flying away in unison together. But how is it that the quick chatter of song among those ...

The natural world is full of hidden conversations, and birds are among its most vocal communicators. While we often associate bird calls with attracting mates or marking territory, scientists have ...

In northern Argentina, one bird courts romance by snapping its wrists together, producing a sound scientists have puzzled ...