Sized just right for nesting Northern Flickers!This Flicker House includes 2 bags of pine shavings for nesting material!Constructed of durable eco-friendly recycled poly lumber - Will not rot, crack, peel or fade. Built to last a lifetime!This house is designed with Northern Flickers in mind, with a single room interior, a 3" entrance hole, and an 8.5" H X 9" W clear acrylic shield in order to keep other birds such as starlings and sparrows out. The house has a slanted front, allowing the flickers to climb up it as they would a tree. This Northern Flicker house also boasts engraved grip grooves and a decorative bird on a tree branch motif which help the flickers easily climb into the house. This house may be used by other woodpecker species.