The coo was like the voice of my L.A. childhood. Hearing the mourning dove again was a revelation, but with it came a realization: I’d not listened to one in many years. It is the sound of do-nothing ...

How do you look for an animal you don’t even know exists anymore? The last sighting of the purple-winged ground dove (Paraclaravis geoffroyi) — a small, bamboo-loving dove native to the South American ...