Frigatebirds can remain airborne for days at a time without landing. Here’s how they rest while flying, according to biological research.

There exists a strange and unnerving phenomenon that one of our news producers experienced this morning, that feels like it could be an omen for... something. He awoke to the sound of banging from ...

Migratory birds change how high they fly over deserts and seas. Wing shape, feather color, and heat all play a role in ...