When Alison Kondler imitates a raven, you’d be forgiven for thinking a real raven just popped on the phone call. Not only is the Denver Audubon master birder a font of knowledge, she can create jaw- ...

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 ...