Rustic Bluebird House, Rustic Feel & Innovative Design, Air Vents Allow For Proper Air Ventilation Through Wall & Floor Openings To Promote Bird Health, Clean Out Doors Provide Easy Access For Cleaning, Added Predator Guard Extends The Entrance Hole To Protect Young Birds Against Predators, Fledgling Skerfs Provide Extra Grip For The Young To Climb Out, Made With Naturally Insect & Rot Resistant Premium Cedar, Durable House That Will Last Multiple Seasons, Can Be Installed With A Pole Mount Or Flush Mount.