Rare Hybrid Bird Discovered in San Antonio Suburb

A rare hybrid bird, resulting from the mating of a green jay and a blue jay, has been identified in a suburb northeast of San Antonio, Texas, according to biologists at the University of Texas at Austin. This discovery may represent one of the first instances of a vertebrate hybrid emerging due to climate-induced range shifts.

Brian Stokes, a graduate student in ecology, evolution, and behavior at UT Austin, noted that both species have expanded their habitats, likely influenced by changing climate patterns. He stated, "We think it's the first observed vertebrate that's hybridized as a result of two species both expanding their ranges due, at least in part, to climate change."

The hybrid bird was first spotted in May 2023 by a local resident who shared a photo on social media. Stokes, who monitors such platforms for research purposes, encountered the image and described the bird as "vaguely like a blue jay, but clearly different." He subsequently visited the resident's backyard to capture the bird for study.

During the examination, Stokes took a blood sample and banded the bird's leg for future identification before releasing it back into the wild. Reflecting on the chance encounter, he remarked, "I don't know what it was, but it was kind of like random happenstance. If it had gone two houses down, probably it would have never been reported anywhere."