Exclusive video reveals half-male, half-female cardinal Birdwatchers in Erie, Pennsylvania, found an incredibly uncommon bird—in their backyard. ANIMALS WEIRD & WILD ...

A recently spotted cardinal in Erie, Pennsylvania, that is part male, part female, is a gynandromorph, referring to a mutation that occurs in insects, birds, and even chicken.

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 ...

Female birds only have one working ovary, usually on their left side. Since this cardinal is female on the left, it's possible it has a fully functional female reproductive system.

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 ...

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 unusual sighting in a Facebook post on Sunday.

A birdwatching couple in Erie, Pennsylvania, spotted a rare bilateral gyandromorph cardinal in their backyard. The bird appears to be half-male and half-female.

Birds that are half-male, half-female 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 ...

Unlike mammals, we never see birds with differences in Z and W chromosome number; there seems to be no bird equivalent to XO women with just a single X chromosome, and men with XXY chromosomes. It may ...

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 ...

As is typical with birds, the male's feathers are brighter and more flashy than the female's, which are often a muted brown ...