Talking birds are birds that can mimic the spoken language of humans. There is debate in within the scientific community over whether talking parrot also have some cognitive understanding of the language. Birds have varying degrees of talking ability: some, like the corvids, are able to mimic only a few words and phrases, while some budgerigars have been observed to have a vocabulary of almost 2,000 words. The Hill Myna, a common pet, is well known for its talking ability and its relative, the European Starling, is also adept at mimicry. Wild cockatoo in Australia have been reported to have learned human speech by cultural transmission from ex-captive birds that have integrated into the flock..