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 ...

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 ...

A birdwatching couple in northwestern Pennsylvania has documented one of nature's most rare and elusive occurrences. Jeffrey and Shirley Caldwell, two experienced birdwatchers based in Erie, lured of ...

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 ...

There’s no flitting around it, this is a rare bird. A cardinal that appears to be half-female and half-male was recently spotted in Pennsylvania. Jamie Hill, a birdwatcher for 48 years, documented the ...

A rare half-male, half-female cardinal sighting last week in western Pennsylvania has birders and scientists across the state a-twitter. Seasoned birder Jamie Hill, of Waterford, Erie County, snagged ...

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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. This post has been updated. It was originally published on March 26 ...

Many people assume that male songbirds are the ones doing the crooning. But more than 660 species of songbirds are known in which the females sing as well. And there are still 3,500 species of ...