“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 ...

BATH TOWNSHIP, MI – A yellow northern cardinal is a rare thing and Michigan’s got one. Michiganders Arlene and John McDaniel have been backyard birders for nearly four decades and just before ...

When disturbed, they flash their bulging red eyes and reveal their huge, webbed orange feet and bright blue-and-yellow flanks. This technique, called startle coloration, may give a bird or snake ...