Songbird Essentials SE615 Portal Protector 1 1/8 in. (Metal) (Set of 1)

Songbird Essentials Metal Portal Protector 1 1/8 in. (SE615) is a portal protector that's made of metal and it is specially created to fit bluebird houses with 1 1/8 inch entrance openings. It can be easily attached to an entry hole with the screws included with it. This protector will prevent squirrels or larger birds from enlarging the hole, as well as fix whatever damage they may have already done.