Tawny Owl Predated

Out and about with DF last weekend at our usual spot, we came across the remains of a dead Tawny Owl. It had obviously been predated by a larger more powerful raptor(my guess Accipiter Gentillis)although can't rule out Buzzard, Peregrine or escape Eagle Owl. Not sure but I think falcons leave distintive notches on the sternum. At first we were unsure what species of owl it was, but when Dave opened its eyes we were in no doubt. Word of warning, one should not touch or pick up dead raptors with the bare hands, as some of the poisens used can be deadly.