Manufactured from western cedar. Features a 3/4" x 2-1/2" oval hole size which discourages house sparrows and encourages tree swallows, violet-green swallows, and chickadees. Painted corrugated metal top on roof for better protection from rain or snow. 1/2 " gap at the top for ventilation, and holes in the bottom for drainage. Front piece swivels for easy cleaning or inspection. Available in green only
