Screech Owl House. To attract screech owls you must provide the proper sized nesting cavity and a 3 in entry hole. This gable roof design with proper drainage holes and a side clean-out is just what you need. Mount 10-20 feet above the ground. This house is made of inland cedar using zinc-chromate screws and hardware with brass hinges.Measures 9"W x 7"D x 14"H.