It works! So far the baffle seems to be doing the job. I had to make one small modification; one of the squirrels quickly learned that he could run up inside the baffle and not have to worry about running away from the dog. This drove the dog crazy, the poor guy would stand there and bark non-stop. I taped up the bottom of the baffle with duct tape, but If I was building another one, I'd probably put another plug in the bottom, just like on the top.