Our Horizontal Bluebird house is specially designed to simulate a hollow tree branch and to be a safer nesting place for Eastern Bluebirds. Over 90% of Eastern Bluebirds nest near the back of the box, behind a vertical baffle, out of the reach of predators. Field-testing shows high acceptance and high survival rates for bluebirds. Designed by Frank Zuern and hand crafted in the USA by Coveside, of Eastern White Pine which provides insulation and durability. Type: Feeders Bird Species: Bird Location: Outdoor