Our Hanging Galvanized Birdhouse “School House” is the perfect addition to any outdoor space. Made from 100% galvanized steel, this heavy-duty birdhouse is powder-coated for weather and rust resistance and includes a metal hook for easy hanging. With an entry hole diameter of 1.75” and a unique architectural design, this birdhouse is both fun and realistic, giving your birds a safe and cozy home to perch. Additional Details: