The wren is usually re-garded as one of the birds most easily enticed into a bird house. They will sometimes take up quarters in an old tomato can set on a fence post, if the open end is closed and a small entrance is provided instead. They prefer considerable shade and usually locate from six to ten feet above the ground. A house adapted to their needs will also answer for a house-finch if placed near the eaves of a building. In the accompanying illustrations a simple design is presented for a wren house, which has a form of entrance that seems to appeal to the bird's idea of safety. The entrance is through the gable, which is left open, and then through a square opening cut in what may be termed the rear of the attic floor.

The lumber diagram shows exactly how to cut each piece. Only two three-quarter-inch boards are necessary, and the only feature of the construction that will require any particular care will be the fitting of the roof. Before putting this on, however, a small strip should be nailed on each of the side walls to support the attic floor, which is not to be nailed in place. This arrangement permits of its removal when it is desired to clean out the nest.