What do you get when you cross a blue jay with a green jay? That’s not the start of a joke, but the subject of a new study that aims to describe a hybrid bird never encountered before in the wild. The ...

Birds of a feather flock together, the adage goes. But a rare bird spotted in Texas suggests there's more ornithological intermingling than previously thought. When researchers at the University of ...

What happens in the wild when sparks fly between a blue jay and a green jay? Until recently, no one had any idea. But then, in 2023, someone spotted a rare kind of visitor to a backyard outside of San ...