We had put the slick outside pole up so the squirrels couldn’t poach the bird seed. Guess what? Finally one of them got smart and grabbed the finch seed bag and hauled his little arse on up. The bags are in, and he’s stuck scavenging with the other 4 squirrels. Can’t they all just get along? If you want to know how to keep squirrels off of bird feeders. The pvc pipe works, just make sure there’s nothing within jumping distance and grabbing distance for a little furry thing. Then your feathery things can still eat!