Keep squirrels from stealing your bird seed with the Brome Squirrel Buster Classic bird feeder. Voted "Best New Product" by the retailers at the Bird Watch America Birding Show in January of 2006, this great feeder will keep squirrels out of your seed. This feeder uses a cage surrounding the seed reservoir to keep squirrels and larger birds at bay. The cage is weight sensitive, and when animals over four ounces such as squirrels, jays, or grackles rest on the perches, the wire shroud drops down over the seed port so they cannot reach the seed. The shroud features plenty of surfaces for small clinging birds such as nuthatches and woodpeckers to grip, while the attached perches offer feeding room for chickadees, finches, and sparrows. Take the perches off for even more selective feeding. The innovative design of the seed tube ventilation system allows warm air and humidity to escape the feeder from waterproof holes at the top of the tube. Fresh air then enters the seed tube from the bottom, keeping seed fresher and attracting several of your avian friends. The feeder comes apart without any tools for efficient and thorough cleaning. Hang this feeder with the included 11.5" metal hanger at least sixteen inches away from a secure foothold for the squirrels. Keep your birds fed without the nuisance of squirrels with the Squirrel Buster Classic bird feeder. Two year warranty against squirrel damage.