Squirrel-X 4.2 lb Satin Nickel Squirrel Proof Wild Bird Feeder. Feed birds, not squirrels Features metal sliding sleeve that closes all ports simultaneously when a squirrel's weight is applied to any perch or the roof 4.2 Lb. Capacity... - Squirrel-X 4.2 lb Satin Nickel Squirrel Proof Wild Bird Feeder.