The Rustic Series Galvanized Weathered Bluebird House with a weathered stain and textured galvanized roof brings a decorative rustic feel to your birding experience. This Bluebird House is made with naturally insect and rot resistant premium Cedar. Air vents allow for proper air ventilation through wall and floor openings to promote bird health. Clean-out doors provide easy access for cleaning. Predator guard extends the entrance hole to protect young birds against predators. Fledgling skerfs provide extra grip for the young to climb out. 1-1/2" entrance hole. Attracts Bluebirds and Tree Swallows.