Red and Yellow Cardinals (IMAGE)

WashU Medicine

Red and Yellow Cardinals

Caption

Scientists have identified the gene that allows birds, such as the cardinal, to make red feathers. Rare yellow cardinals with defects in the production of red coloration are sometimes seen in the wild.

Credit

Geoffrey E. Hill (red cardinal) and Jim McCormac (yellow cardinal)

Usage Restrictions

None

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.