Woodlink Wren HouseThis product will NOT be shipped. In store pick up only! Nest box with drainage and aeration holes for House Wrens. 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 parasites. Old nesting material should be removed and the inside of the boxes be sprayed with a bleach solution then rinsed. Nest