When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Male cardinals are red. Female cardinals are tan. The odd bird that's been roosting outside Jeff ...

This bi-colored northern cardinal has female plumage on its right, and male plumage on its left. Called a “gynandromorph,” these animals are rare in nature. Rarer still is the chance to study one for ...

The adult male cardinal is unmistakable with his intense red color, prominent crest and heavy, orange-red bill. The adult female cardinal has a red and grey crest. She is olive-gray above and brownish ...

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 ...

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