DEAR KARL: The little bird in question is a dark-eyed junco, who has a well-earned reputation for window tapping. They are very territorial, so while it’s a little early for breeding season, your ...

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 ...

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, ...

A large seabird with a hook stuck in its beak sought medical attention by pecking at the window of a German hospital's emergency room.