In response to the people wondering where the "bird of prey" sample came from, it's from Jim Morrison's posthumously released poetry/song/spoken word type deal called "An American Prayer." In 1978 the remaining Doors got bored or something and decided to reform and do some music to go behind some old recordings they had of Morrison reading his poetry (apparently Morrison considered himself a poet first and a rock and roll singer second). The album's got high points and low points (bird of prey is one of the cool parts I think). So anyway that's where that came from. It's not rare at all, just in case people are thinking that Fatboy Slim dug it out of obscurity or something. I guess now is a good time to admit having harbored an obsession of sorts with regard to the Doors (forgive me, I was like 12, 13 years old!). I used to get kinda obsessed with bands like that when I was younger (still do I guess).
Andy