Pet African Grey Sounds Good examples of whistles, pops, muttering by Kookoo.
African Grey calls, whistles, etc. BBC sounds library from a Dutch zoo. (Other parrots in background, further awy and screechier.) (WAV audio file, may take a minute to load)
Carly Lu & Piper: In Flight and at Home (YouTube Playlist)
Parrots in the Wild Photos and video from Parrots International of macaws, Amazons and conures.
CityParrots.org Photos and information on naturalized urban parrot populations around the world.