The bird’s colors will become even more vibrant, and “the line between the male and female side will be even more obvious.” Such birds are rare. Lindsay has seen only one other similar ...

The rare coloration is called bilateral gynandromorphism, Kratter said, and causes the animal to be male on one side of its body and female on the other. For the cardinal, the bright red side and ...

an unusual cardinal has appeared, displaying both male and female traits ... Shirley and Jeffrey Caldwell have ever seen. Its left side is the taupe shade of female cardinals; its right, the ...

TEXAS, USA — A cardinal caught recently in central Texas has a rare abnormality that causes it to have female feathers on one side of its body and male on the other. The Inland Bird Banding ...