The Main Street Colonial Cottage for Purple Martins has ten separate nest boxes to welcome the largest member of the North American swallow family. Designed in Colonial Revival style, the single most popular architectural style in the United States, details include two bay window on each side, flower pots out front and window details on all four sides. A bold, black shingled pine roof with a pale yellow fa?ade tops this fully functional bird mansion. Just loosen the four bottom screws to allow for yearly cleaning. Each nest box has a 2 1/8" entry hole and the house offers ample drainage, ventilation and an unpainted interior. Item Dimensions: 18. 5? H X 16. 5? W X 14. 5?D.