Gardirect Retro Painted Bird House, Wooden Bird Nesting Box (7.8&rsquo;&rsquo; X 7&rsquo;&rsquo; X 7.8&rsquo;&rsquo;) Simple, easy lifestyle design. Can be mounted on a tree, wall or fence post. The sloping roof is convenient in rainy days. The paint on all surface is from plant extracts, non-toxic, safe for birds. Suitable for bluebirds, swallows, great tits, nuthatches and other similar sized birds.