which has earned the species the nickname of "red birds." Female cardinals, on the other hand, are more muted in color. They have mostly brownish feathers with red accents on their tails and wings.

For even the most casual birdwatcher or nature lover, there's something so uplifting about seeing a male northern cardinal. The candy apple red birds with the short orange beaks and the adorable ...

“We do not seem to know the exact genetic mutation that causes yellow-pigmented Northern Cardinals, but whatever the mutation is affects the bird’s ability to produce red carotenoid pigments ...

Their feathers are more of an olive-brown color with tinges of red. Northern cardinals have one thing over many other birds and that is they don't lose their vibrant color in the colder months.