Although squirrels can be smart little animals, they can't outwit this special squirrel-resistant bird feeder with its patented barrier. The Perky-Pet® The Preserve™ Feeder features a decorative metal top, feeding ports, perches and holds up to 3 lb of seed. The patented, diamond-shaped barrier allows birds in and keeps squirrels out. The clear, plastic reservoir makes it easy to monitor seed levels.