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 many bird lovers, the sight of a cardinal holds special meaning, sometimes evoking emotional or spiritual feelings. They say the vibrant red bird is an uplifting, happy sign that those we have ...

“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 ...