Bluebird Nesting BoxThis product will NOT be shipped. In store pick up only! Nest box with drainage and aeration holes for Bluebirds. Specially designed hanging system to install your box without damaging trees. Side door opening for easy maintenance access. The hole guard protects eggs and nestlings from predators such as squirrels and raccoons. Nest Box Safety Nesting boxes should be cleaned at the end of the nesting season to help prevent the spread of feather