“It was spectacular. This bird is in its nonbreeding [plumage], so in the spring when it’s in its breeding plumage, it’s going to be even more starkly male, female,” Lindsay says.

Scientists at the Carnegie Museum of Natural History in western Pennsylvania recently observed a rare half-male, half-female bird — a rose-breasted grosbeak — at the Powermill Nature Reserve ...

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 honeycreeper.

Rare bird with half male and half female plumage photographed in Colombia Zoologists say the newly observed green honeycreeper is an example of a bilateral gynandromorph. Laura Baisas ...

An "extremely rare" half-female, half-male bird has been caught on film, a sighting that has only been made once more than 100 years ago. Zoologist and professor at the University of Otago in New ...

Several photos of the half-male, half-female green honeycreeper bird. Photos from John Murillo via Murillo, Campbell-Thompson, Bishop, Beck and Spencer (2023) ...

Female flickers are mostly gray in the face while males in our area usually have a black stripe just behind the bill. Technically, this is known as a "malar stripe," but it's easier to think of it ...

Hill said he didn't know if the bird he saw was the same one as the Caldwells' but he thinks it's unlikely. He encouraged other birders to keep "your eyes open for this bird or one like it." Hill ...

A rare bird has been found at Powdermill Nature Reserve in Westmoreland County. The newly banded Rose-breasted Grosbeak is a gynandromorph, meaning that it is part male and part female. This ...