For decades, scientists have known that only a few groups of birds—songbirds, parrots, and hummingbirds—can learn to produce new sounds. But a new article in The Quarterly Review of Biology reveals ...

You’re outside when suddenly you hear an unfamiliar chirp. Looking around, you wonder, “Is it a squirrel?” “Is it a bat?” And ...

This video explores the breathtaking birds that fill Costa Rica’s rainforests with color and sound. Viewers see species ...