If you have problems with magpies, cats or squirrels raiding your wooden nest boxes, the Bird Guardian is the answer. It makes it much harder for predators to gain access to the box but still allows the parent birds easy access. Suitable for hole sizes up to 38mm and includes three fixing screws. Made from strong plastic.
Buy this item separately or ask us to fit it for you FREE OF CHARGE when ordering any Official Cedar or Official Pine nest box.