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 ...

Researchers have discovered an extraordinary, vibrantly colored tropical bird with "female" feathers down one side of its body and "male" feathers down the other. Female green honeycreepers ...

In a forest of Colombia, a multi-colored bird waited its turn to approach the bird feeder. When it finally came close, the onlooking scientists were stunned. On its left side, the green honeycreeper ...

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 ...

A homeowner in north Florida spotted the rare bird when it stopped for something to eat at her bird feeder, she told McClatchy News. Nick Nicholson via Unsplash When a homeowner in northern Florida ...