From Popular Mechanics
Scientists have discovered a gynandromorphic (two-sexed) bird in a Pennsylvania nature reserve.
The bird displays an even split down the middle between male and female feather coloring, leaving researchers to label it a “unicorn.”
The bird is likely a product of a genetic anomaly, but it’s perfectly healthy.
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 specimen containing both female and male characteristics that can sometimes be seen in physical traits on the body.
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Meet the rose-breasted grosbeak (Pheucticus ludovicianus), which displays an even split down the middle between male and female feather coloring. The bird’s right side shows red plumage (male), while and its left