Audubon Tube Feeder With Cage Catalog Bird and Wildlife Feeders Squirrel Proof Audubon Tube Feeder With Cage UPC : 715038302988 SKU : 06604217 Model Number : NATUBE3 Description Features protective grid work to keep squirrels out. Durable construction featuring unique metal seed ports will allow years of enjoyment. Rates Please contact us for current pricing and availability.