Every once in a while, a genetic anomaly will occur in the animal world that blows scientists’ minds. Take, for example, the exotic bird in the image above. It’s “gynandromorphic,” which means a ...

A striking and extremely rare half female, half male bird has been spotted by a University of Otago zoologist. Sesquicentennial Distinguished Professor Hamish Spencer was holidaying in Colombia when ...

Biologists recently made a "once-in-a-lifetime" discovery of a bird that's male on the right side and female on the left. Researchers captured the bird, a rose-breasted grosbeak (Pheucticus ...

Look at this fancy little gentlethem! The bird whose eye-catching color story you are currently jealous of is a green honeycreeper (10/10 on that name, honestly). But this isn’t just any green ...

This Rose-breasted Grosbeak gynandromorph bird possesses both male and female physical traits, including different colored wing pits. Male Grosbeak have reddish pits, while females have yellow. A rare ...

Male and female birds are often quite different. Looking at two individuals of radically different color, it’s sometimes easy to forget this. I often talk to people who think they have multiple kinds ...

Bird banders in Cook Township banded a one-in-a million bird — a rose-breasted grosbeak with half its body looking like a male and the other half, a female. The bird was banded on Sept. 24 at Carnegie ...

The ranges of the two parent bird species have expanded due to climate change and now overlap around San Antonio, researchers ...