This sturdy box has a 7cm diameter hole - the optimum size for allowing Little Owls in whilst keeping the more domineering Tawny Owl out. Made from exterior grade plywood with a bitumen-covered lid for added protection, the box has a separate nesting area at the back, which appeals to the Little Owl\'s natural preference for nesting in dark cavities. Site at any height where the box is free from predation or interference and locate it in a quiet area on an accessible branch.