African Greys are known to be the best talkers in the bird world
and frequently imitate lots of other sounds including the doorbell, telephones,
microwaves, beepers, dripping faucets, and more.
There are two species of African Grey generally kept as pets, the Congo (which has a red patch of feathers on the underside of the tail), and the Timneh (with maroon tail feathers). They make a nice jungle sound when relaxed. When threatened or frightened they make a growling sound.