Nighttime Screams

I heard this noise outside my window and caught it on my digicam. You can't see anything because it's 1AM and it's pitchblack, just hear noises, which is why it really freaked me out. It isn't human screams, I think it might've been a rabbit being preyed on...and if you listen really closely you might even hear the growls that really creeped me out (although it's hard to distinguish the growling and the traffic noises). Anyways, enjoy...