Woodlink Nesting Box
Birds love simple, plain nesting boxes. This one is made of heavy duty 3/4″ cedar. It has a 1 1/2 inch hole.
Besides bluebirds, it is suitable for any songbird that uses a house such as chickadees, titmice, Carolina Wrens or nuthatches.
Easy to open, easy to clean. Has over hung roof, good venting and drainage.