The vivid color of male cardinals comes from carotenoid pigments found in red fruits, like winterberry.© Danita Delmont/Shutterstock A female cardinal feeds a caterpillar to a nestling ...

Cardinal bird Widespread and abundant, the cherry red birds called Cardinals can be spotted throughout the United States and as far north as southeastern Canada.

A male red cardinal sits perched on a branch in rural eastern Ontario. The yellow cardinal is the same species and he's not as popular with females as his red rivals. (Sean Kilpatrick/Canadian Press) ...

Sask. birder gets rare cardinal sighting near Carrot River "I look out and here's this crazy red cardinal sitting there." By Jocelyn Bennett • Saskatoon StarPhoenix Published Aug 12, 2022 2 ...

“If red coloration is indeed an important factor in mate choice or breeding success, it may be possible that this yellow Northern Cardinal has a harder time finding a mate,” says Billerman.