Here’s some facts you might not know about Kentucky’s State Bird — the Cardinal. Both the male and female cardinals sing. The songs typically last 2 to 3 seconds and sound like the bird is saying ...

In a backyard in Erie, Pa., an unusual cardinal has appeared, displaying both male and female traits. Scientists say it may be a so-called gynandromorph. By Karen Weintraub A bird hopping outside the ...

Thanks to the developmental fusion of male-female bird twins into one individual, this northern cardinal is half red and half tan -- split lengthwise down its middle -- and is half male and half ...