This simple forward sloping birdhouse is made out of Northern White Cedar. The bird house is glued with waterproof glue and outdoor-grade brad nails. This birdhouse can be mounted on trees because it has an extended back piece. This birdhouse has a side that can swing open for cleaning out after the nesting season is over. It is important to clean the birdhouse out because old nests can often have bacteria and diseases that can harm the birds who will love in the house next season. The birds that will nest in this birdhouse are the following: bluebirds, chickadees, finches, flycatchers, titmice, tree swallows, violet-green swallows, and wrens.