The Bird Guardian Predator Guard for Bluebird Houses SCREW-MOUNT Style
This unique predator guard extends the entrance so predators can’t reach the nestlings or adults inside your bird house!
This predator guard was featured on the Today Show and has been approved by the Humane Society, Chapters of the Audubon Society and others! Attaches easily with three screws to any 1 to 1 1/2″ bird house opening. This bird guardian tunnel has been patented, tested and approved to protect your sensitive bluebirds against harmful predators like bluejay’s, crows, grackles, squirrels, cats, opossum and raccoons. Dimensions: 2 1/2″ long, 1 1/2″ in diameter. Includes three mounting screws.