A smart design, the only aluminum Purple Martin House we will carry. Large, roomy compartments measure 8" x 8", one of the roomiest Purple Martin houses on the market. Pods stack so you can add houses as your colony expands. Nesting boxes can be fully disassembled for ease of cleaning. Top removes with snap tabs to allow easy nest inspection. Innovative nest area has a removable molded nest cavity for easy cleanout. Internal predator guard with integrated exercise perch. Improved air circulation with cross through ventilation and floor vent holes. Integral front porch snaps in place to "lock" nesting box onto mounting pole. Nesting boxes can be removed individually, without disturbing birds in adjacent houses. Round, Starling-resistant, and entrance hole plugs included.