Do you have cats? My whole yard was full of squirrels before the little stray cat had her kittens under my house. We're down to two cats now, sometimes three, and I haven't seen even one squirrel in the yard since the cats moved in. They used to get into the attic of the house and I could hear them scurrying around up there, but not anymore.
I have seen a few little furry "body parts" scattered around that could have been what's left of some of the slower squirrels!
