I battled squirrels for almost 20 yrs and by accident now have a squirrel free feeder. The feeder is hanging from a branch far enough away from the trunk and hanging by a thin wire that drapes the branch and hangs down double like. Not sure why this keeps the squirrels from going down the wire...when it was single they slid down with out a problem. All I know is It is peaceful at our feeding station now. Everyone gets choice food and plenty. Suit, thistle feeder, corn feeder, and mixed seed feeders, plus mixed nuts tossed on the ground. My biggest problem now is the birds are getting demanding. If I don't get out there bright and early to fill everything some will peck at the window.