This bird’s anomaly is called ‘bilateral gynandromorphism’, making half of the bird’s body male and the other half female. You can see, it is creating a stunning appearance. The bird possessing this abnormality is a half-vermillion, half-turtledove cardinal.

The problem is believed to arise from an imbalanced circulation of sex chromosomes in the bird’s very early beginning growth.

Photo Courtesy of Inland Bird Banding Association

Ginandromorphs occasionally have both female and male genitals and are generally clean and sterile. They are also extremely uncommon, however far from impossible to find. This sensation happens in birds, insects, and also crustaceans.

This is possibly a problem in lots of species, but not all varieties have such apparent differences between the male and female animals that are simple to spot.
Photo Thanks To Inland Bird Banding Association

Cardinals are one of the most well-known sexually dimorphic birds in North America, so the anomaly is promptly obvious. What then makes these varieties so fascinating? Many animals influenced by gynandromorphism are sterilized, yet this sampling might not be due to the fact that the left side is female.
Picture Courtesy of Inland Bird Banding Organization

However, if you check it out from the front, you will undoubtedly see what nature can.
H/T whydontyousharethis.com.