In Texas, biologists have documented an extraordinary bird — the natural hybrid offspring of a green jay and a blue jay. Once separated by millions of years of evolution and distinct ranges, the two ...

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 ...

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.

A male blue jay on the left, a female green jay on the right and a hybrid offspring of the two species in the center. Travis Maher / Cornell Lab of Ornithology / Macaulay Library (left); Brian Stokes ...