ERIE, Pa. – Longtime birder Jamie Hill knew he'd come across something rare. The Waterford, Pennsylvania, man saw a northern cardinal that appeared to be male on its right side and female on its left.

Male cardinals are red. Female cardinals are tan. The odd bird that's been roosting outside John and Shirley Caldwell's kitchen in Erie, Pennsylvania, is an even split of both. Divided down the middle ...

Plumage is a term that refers to the characteristics of a bird's feathers. Shown here is the normal plumage of an adult northern cardinal. The female northern cardinal is often thought of as not ...

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 ...

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Editor's note: Jamie Hill was misidentified in a previous version of this story. Longtime birder Jamie Hill of Waterford knew he'd come across something rare when he saw the northern cardinal that ...

Editor's note: The video above is from Feb. 2021, and features Andrea Tims who runs a bird sanctuary in Maine. A Pennsylvania man hopped on Facebook, ecstatic to tell everyone he knew about the ...

The northern cardinal seems an obvious choice for Indiana’s state animal. Its vivid red feathers stand out against winter ...

James R. Hill III has marveled at the feathered animals for 48 years, but on Saturday he saw a 'one in a million' bird with bright red like a male cardinal on one side and brownish white like a female ...