This station is squirrel proof. After many attempts to foil my furry friends, I designed this feeder and paid a paid a metal fabricator to build it. The squirrels stay on the ground now as they can not climb the structure or leap from nearby branches. I have to give credit to one grey squirrel in particular. I was amazed at the new ways he/she would come up with to get the sunflower seeds. I would comment to my wife that I swear he knows calculus. :)