Lyrebird
We give parrots too much credit for being able to imitate human speech. To be honest, they’ve got nothing on the lyrebird found in Australia. While it is not known to replicate human speech, the sheer variety of natural and artificial sounds that it can mimic is astounding.
Like most other birds, it does this in order to attract a mate. Its own song is a composition with elements borrowed from the songs of other birds. The kookaburra, for example, has a unique sound, but the lyrebird can replicate it so well that it can fool the real kookaburras.
Even more amazing is the lyrebird’s ability to mimic artificial noises. You won’t have to wonder whether a lyrebird had ever encountered humans or not when you hear it mimic car alarms, engine noises, phone ringtones, chainsaws and even crying babies.
http://www.youtube.com/watch?v=VjE0Kdfos4Y?t=1m22s