A bi-colored northern cardinal half-male and half-female bird. These animals, called a “gynandromorph,” are rare.
This northern cardinal has female plumage on its right and male plumage on its left, spotted a few years ago in Rock Island, Illinois.
Ornithologists Brian D. Peer and Robert W. Motz, who discovered the bird, explained:
“The bird exhibited the typical bright red color of a male cardinal on the left half of its body, and the dull brownish-gray appearance of a female cardinal on the right half. We observed the bird more than 40 days, mostly in the vicinity of bird feeders.”