It is best if the grass is short. Fence lines, power lines, scattered trees or nearby woods provide good perches. Boxes placed in forests, inner cities, shaded yards, cultivated fields or areas with only tall grass will probably be unsuccessful. How to situate nest boxes For best results, mount the box on a lone post. Posts in fence rows can become overgrown with brush, enabling black rat snakes and mice to enter the box.
Tree trunks are often too shaded or easily climbed by squirrels and snakes.
Bluebirds nest at almost any height, but this height is convenient for checking. This accommodates the bluebird's sizeable territory. Boxes placed closer might be used at the same time if not in sight. Pine or other easily worked wood is recommended. Painting is not necessary.