We have quite a few squirrels living nearby that constantly climb on our lanai screens. I have two bird feeders placed strategically far enough away from the screens to prohibit the squirrels from jumping onto the feeders to get into the birdseed. I also have a metal ring hanging on the pole under the feeders to prohibit them from climbing up the pole to get into the feeders. Despite my well planned distractions to keep them from getting a free meal, they still try and try again every day over and over to get to the feeders. They really can be quite entertaining at times to watch.