Designed to be a safer nesting place for Eastern Bluebirds, this horizontal box simulates a hollow tree branch. Over 90% nest near the back of the box, behind a vertical baffle, out of the reach of predators. RANGE: Breeds east of the Rockies from southeastern Canada to Gulf of Mexico. Winters in southern part of breeding range and Mexico. Measures approximately 6 1/4" h x 6" w x 19 3/4" d. Made in Maine from eastern white pine.