Sep 29, 2025, 12:00 AM
Sep 29, 2025, 12:00 AM

Rare hybrid blue jay-green jay discovered in Texas

Highlights
  • Researchers discovered a hybrid bird in May 2023 resulting from a blue jay and a green jay mating.
  • The green jays have been expanding their range north into Texas, overlapping with blue jays around San Antonio.
  • This discovery raises questions about hybridization trends among birds and the implications of changing habitats.
Story

In May 2023, researchers in Texas discovered a rare hybrid bird resulting from the mating of a male blue jay and a female green jay. This remarkable finding occurred in a backyard, where birdwatchers frequently report their sightings. The green jay, a tropical species, has expanded its range northward over the past two decades, with its territory now overlapping that of the blue jay around San Antonio. This overlap has enabled the first known instance of hybridization between these two species in the wild. The blue jay, commonly found throughout the eastern United States, has also been moving westward, potentially due to suburbanization and the availability of bird feeders. Birders have actively engaged in sharing their sightings of green jays on social media platforms, reflecting the keen interest in this bird species. Timothy Keitt, a coauthor of the study, and researcher Stokes identified this exceptional hybrid after noticing social media posts featuring an unusual-looking jay. Upon investigating further, they confirmed the bird's hybrid status through genetic analysis. The hybrid exhibited distinct traits from both parents, presenting a mix of blue and green feathers, which is unusual since the two species are not closely related and separated from a common ancestor approximately 7 million years ago. The presence of such a hybrid raises questions regarding the behavior and reproductive strategies of these birds, as they are known to form long-term pair bonds with mates. Gavin M. Leighton, a biology professor who studies bird hybridization, remarked on how surprising this pairing is given the significant physical differences between the two species. The phenomenon of hybridization indicates changing dynamics in bird populations as environmental factors shift. As temperatures rise, increased overlap in the territories of blue jays and green jays could lead to more such hybrids in the future. Researchers are now eager to observe the long-term impacts of this overlap on both species and what it might mean for their evolution and behavior in a rapidly changing habitat.

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