Rita, I agree that everything on the ground gets cleaned up, but - in my yard, it's cleaned up by raccoons, squirrels, chipmunks, and mice, instead of birds! I'm surprised some of the rodents can move, they're so fat.
Has fall hawk migration started? There was a beautiful large hawk in the garden yesterday, trying to catch a grackle or a red wing blackbird. The hawk was brown with a white patch on its rump, so I think it was a female Northern Harrier.