I just have the one piney, the rest are plain ol' eatin' squirrels. They've taken up residence in the garage, meaning I don't spend enough time there, but I'm about to remedy that, too. I used to have them in the attic and a couple of walls, but I made a one way door so they could leave but not come back. Amazingly effective.
I have been at war with the little tree rat Bastardies for 30 years. I am pulling out my main defense weapon this weekend. The one way water slide to hell.