A Lyrebird is a ground-dwelling Australian bird, and are most notable for their superb ability to mimic natural and artificial sounds from their environment.
They can mimiic the sound of chainsaws, mobile phones, camera shutters, car alarms, and mostly other birds with such aplomb that it is almost impossible to tell which is the bird and which is not.
One of the world's most amazing birds!

Watch and you'll be amazed:
http://www.youtube.com/watch?v=VjE0Kdfos4Y