A northern cardinal was struggling to hang on to a bird feeder outside a home in Plymouth, Massachusetts, on Tuesday, January ...

Red head color in birds can be linked to various adaptations. For instance, the bright red crest of a cardinal might be used for attracting mates or defending territory. Many red-headed birds ...

As the winds of winter sweep across Nebraska and the trees stand with bare branches, it’s a quiet, contemplative time — until ...

Just before Christmas, two backyard birders in Michigan were in for the ultimate surprise–a yellow Northern Cardinal. Arlene and John McDaniel spotted the incredibly rare bird in their backyard in ...

The state bird ... Cardinal. A Northern Cardinal is a striking site when you go birdwatching in North Carolina. It's the one that almost every birdwatcher hopes to see at least once. The males ...

Scientists learned it’s connected to lacking proteins, or enzymes, in those unique birds. “It’s actually two enzymes. It requires a two-step process for a cardinal to be red,” Hill said.