In a backyard in Erie, Pa., an unusual cardinal has appeared, displaying both male and female traits. Scientists say it may be a so-called gynandromorph. By Karen Weintraub A bird hopping outside ...

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 ...

Gynandromorphs, or "half-siders," exist in many bird, crustacean and butterfly species. According to Hooper, cardinal half-siders are especially easy to spot because male and female birds of the ...

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 ...

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 ...

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, snagg… ...

This bird is in its nonbreeding [plumage], so in the spring when it’s in its breeding plumage, it’s going to be even more starkly male, female,” Lindsay says.

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, docum… ...

A "once-in-a-lifetime” sighting made by a Pennsylvania birdwatcher took internet flight in late February 2021 when photographs claimed to capture a half-male, half-female northern cardinal. The ...

A half-male, half-female cardinal was spotted by a birder in Erie, Pa. The bilateral gynandromorph is a rare occurrence in nature, last spotted in 2019. Unusual for gynandromorphs, this bird can ...

Very occasionally a bird is found with one side male, the other female. The recently sighted cardinal has red male plumage on the right, and beige (female) feathers on the left .

"Both the male and female are real lookers, which is not true for a lot of bird species where a male and female have different plumage. I've been noticing 12 cardinals at a time at my feeders in ...