Colorful Wren or Chickadee Bird Houses with corrugated metal roof is a bright and fun addition for backyard birds. This nest box has a pitched corrugated metal proof and room for small cavity dwellers with a 1 18-in entrance hole size . Features a steel predator guard with corrugated top and hanger; plus easy clean-out access with screwdriver Constructed of bird-safe medium density fiberboard. Provides a perfect nesting spot, and is fully assembled and easy to hang using the attached hanger ring. Assortment of six vibrant colors.