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 ...

Researchers have found a new "grue jay" bird in South Texas, a hybrid between blue and gray jay birds that is likely the result of shifting weather patterns and climate change. Here's a fun question.

To a novice, the bird looks just like any other: two wings, a beak; its vivid blue coloring offset by a white chest and a black face. But when Brian Stokes, a graduate student in ecology, evolution ...

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 ...