We heard this gawdawful screeching one day, and it was Mr Smooth Raccoon giving his ladylove the business in a tree outside our front door. Evidently he was doing it wrong, because she would turn and hiss and screech at him, but not make a move to leave. I'm surprised there were any leaves left on the tree from all the shakin' goin' on!!!!! Sounded like 10 cats in a cement mixer.