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.

Because male and female cardinals look markedly different, the gynandromorphs among them can be easily spotted. Male cardinals are the deep-red color commonly associated with the bird, but female ...

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 ...

The birds can produce over 24 beautiful and complex tunes. Both female and male cardinals sing but the female's song is often longer and more complex. They have a clear, whistling tone which may ...

From hummingbirds to cardinals, bird feeders to bird flu — here are more stories about the winged creatures we love to see in our backyards (and beyond). The male Northern Cardinal is hard to miss.