[yt]http://www.youtube.com/watch?v=xIxZZdYPh3Q[/yt]
It's hilarious as he has built in the screams of Bussards (a bird of prey), cell phone ringtones, song fragments of several African bird species, a Harz Roller (a sort of canary bird with a peculiar warbling song) and the squeaking of a bicycle in need of oil. 
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