Humans can’t see ultraviolet light, but many birds can. “Their sky will be essentially an ultraviolet sky,” said Daniel Hanley, a sensory ecologist at George Mason University.

For many years, scientists suspected that birds used the night sky for navigation. In 1960, German ornithologists, Franz and Eleanore Saver, collected data from a series of experiments, conducted ...

More than 200 birds fell from the sky and onto the street in a Utah city.“It’s one of the rarest things I’ve ever heard of,” Sgt. Chad Carpenter with the Draper City Police Department told ...