So What Should We Call This — a Grue Jay?

The rare hybrid offspring of a blue jay and a green jay is likely a result of weather-related shifts in the range of two species.

September 19, 2025

External link:

https://cns.utexas.edu/news/research/so-what-should-we-call-grue-jay

A male blue jay (left), a female green jay (right) and, between them, a rare hybrid bird identified in a suburb of San Antonio, Texas

Grand Challenge:

Planet Texas 2050