Woodlink Wren/Chickadee House Has A 1 1/8" Entrance To Allow A Chickadee Or Wren Inside. These songbirds may have one or two broods during spring and summer. Does not have a perch to discourage Sparrows and predators. Mount 5 Ft. to 10 Ft. high in an area with 50% sunlight. Side opens for fall cleaning. Chickadee wood burned on front. 5" x 6" x 12".