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 ...

Both male and female sing — and they do it a lot. Each has about 12 different songs. Females often, but not always, sing the same songs as their mates. Once the female is incubating the eggs, she will ...

Source: fir0002, via Wikimedia Commons. Traditionally, birdsong has been viewed as a male trait, and this bias has dominated research on the behavior. “For a long time, scientists thought that female ...