Truly squirrel proof! Effective against Red and Gray Squirrels, and some large nuisance birds. Woodpecker friendly tail prop. The Squirrel Buster Nut feeder is designed with a large tail prop allowing woodpeckers to feed comfortably, using their tails for support and balance just like they do on trees. Mess free. The wire mesh holding the shelled peanuts or wild bird food nuggets is calibrated so that birds cannot simply sweep the food out of the feeder. Very small bits that may fall below the feeder will be eaten by ground feeding birds or squirrels. Food is not wasted and there is no mess to clean up. Ideal for decks, condos and apartments. Peanuts are an incredibly popular food at feeders and will attract a great variety of birds. Nuggets, a high energy suet-based soft wild bird food product, are a favorite of all suet, fruit and insect-eating birds. Both are high in protein, oil, and fat, making them a perfect addition to the foods you offer the birds in your backyard. Also attracts: Grosbeaks, Blue Jays, Pine Siskins, Redpolls, Sparrows, Tufted Titmice, Woodpeckers, and Wrens.