Duncraft.com: Duncraft WSB3 Eastern Bluebird House, Set of 3
Duncraft.com: Duncraft BirdSafe Bluebird House with Wren Shield
Cedar BlueBird House – Chirp Nature Center
Amazon.com: Gray Bunny Bird Houses for Outside - Cedar Bird House, Bluebird House with Secure Latch, Fledgling Grooves, & Air Vents, Weatherproof Birdhouse, Gifts for Mom, Gifts for Dad : Patio, Lawn