Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Thud. It's a stomach-turning sound to anyone who's seen or heard a bird fly into a window at full tilt. Birds can't distinguish glass from open air, and that lack of judgment can injure or kill them.

Dear Dr. Fox: We have a red bird that has been pecking at our window for about a month now. He repeatedly flies at the window. Sometimes I hear the flutter of his wings, as if he is trying to come ...

Owning a wood-framed house in Upstate New York, I expected to deal with snow and the occasional mouse—not birds attacking or flying into my home. But last fall, after hearing a woodpecker drill its ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Owning a wood-framed house in Upstate New York, I expected to deal with snow and the occasional deer—not ...