1-1/2" ENTRANCE HOLE: SISTERBIRD blue bird houses for outdoors have a properly-sized entrance hole, through this bird houses for outside you can attract desirable species to your bird house, such as Bluebird, Wren, Tree Swallow, Chickadees, etc. While this bird house kits for adults excluding predators and unwanted occupants, for example, European starlings HIGH-QUALITY MATERIALS: SISTERBIRD birdhouse kit use untreated, unpainted cedar. Bluebird houses for outside front clean has a rough surface, and nesting boxes can give birds a foothold as they enter and exit the bird nest. Bird houses for outside clearance also can keep out weather-related damage SAFE HOME FOR FLEDGLINGS: SISTERBIRD bluebird house predator guard around the entrance hole can help young birds against predators. These bird house kit interior grooves, like a small ladder, help young birds leave the birdhouse, especially swallows and bluebirds. A great bird houses for creating a trail EASY AND FUN TO ASSEMBLE: Just use a screwdriver, you can experience the thrill of working with your family to build nesting boxes, and feel the pride that comes from building a birdhouses for outdoors for little birds. You can also DIY, paint it, making bluebird houses special and unique, build your own blue bird houses for outside EASY TO CLEAN & REUSABLE: SISTERBIRD blue bird house front door opens for easy cleaning after fledglings have left. When the season is over, clean out the wooden bird houses and save birdhouse kits for kids for next spring SISTERBIRD Cedar Bluebird Birdhouse is made from untreated premium cedar. Bird houses for outside use sturdy screws for the best seal. Bluebird houses for outside has an easy-to-open front door for easy cleaning. This bird house kits for adults have multiple air vents for adequate ventilation. Birdhouses for outdoors is well-built, with a sloped roof, recessed floor, and drain holes to keep birdhouse dry and cozy. Bluebird house has an added predator guard keeps squirrels and woodpeckers from enlarging it. Birdhouse kit fledgling skerfs provide extra grip for the young to climb out. Blue bird house entrance hole size is good for multiple types of North American wild birds - Such as Bluebird, Chickadee, Wren, Finch, Blue Jays, and even a small Woodpecker.