Thanks to the developmental fusion of male-female bird twins into one individual, this northern cardinal is half red and half tan -- split lengthwise down its middle -- and is half male and half ...

You probably know what a cardinal looks like, but we bet you've never seen a "leucistic bird." If you haven't heard the term, you're not alone. This rare mutation "results in a total or partial ...

GREENVILLE, N.C. (WNCT) — The northern cardinal is quite a notorious bird. With its bright red plumage, the cardinal moves about much of the United States. The northern cardinal can be found as far ...

ERIE, Pa. — A Pennsylvania bird watcher found a rare cardinal with two colors that is half male and half female. Jamie Hill, 69, a longtime birder from Waterford, noticed that the bird was bright red ...

A rare half-male, half-female cardinal was first spotted in Pennsylvania a few weeks ago, a report said Thursday. “This remarkable bird is a genuine male/female chimera,” said Daniel Hooper, a ...

The very popular Northern cardinal is the state bird of seven states, and has been introduced as a breeding species to California, Hawaii and Bermuda. The cardinal is sexually dichromatic: The plumage ...