Audubon Snack Shack Feeder is squirrel resistant with weight activated perches to keep squirrels out by closing access to seed tray. The roof locks securely to keep squirrels out of hopper. The construction is durable, chew-resistant red powder coated steel with a sturdy metal hanger. Holding up to 7 lbs. of birds' favorite mixed seed, sunflower seeds, or safflower, this large capacity feeder requires less frequent filling. Perfect for any birding enthusiast.