More Birds Squirrel-X4 Squirrel-Proof Bird FeederFeed birds (not squirrels!) with the revolutionary Squirrel X4 Squirrel Proof Bird Feeder! If a squirrel tries to feed on any of the 4 integrated perches, the X4s spring loaded design shuts every port simultaneously, stopping racketeering rodents right in their tracks. As if that wasnt revolutionary enough, the X 4 is making bird feeding easy with its SureFill No Spill features. Its spring loaded, push button top effortlessly opens with one touch,