father-in-law`s voice, which was very deep, and his wife`s voice, which was higher pitched and sort of nasal. It sounds like they`re in the room with you - kind of eerie, since my father-in-law died several years ago, and he was divorced before that, so neither person is around any more. At least in my bird`s case, there doesn`t seem to be a limitation to her range. Of course, she also imitates all the beeps, squeaks, thumps, etc. she hears around the house, along with bird calls, dog barks, goose honks, and so on...