Gilbertson Nest Box - NABS Approved

Simple to monitor, an Eastern bluebird favorite! The Gilbertson Nest Box is approved by the North American Bluebird Society. Now with optional poly-lumber matching roof. Preferred by blues over the years, cool birdhouse mounts quickly and easily on 1/2-inch metal conduit. PVC will not rot, split or crack, nest box will host many successful broods with its great features: Overhang roof design discourages house sparrows, easy to attach a wren guard or sparrow spooker. Body is easily removed by squeezing and elongating the top opposite sides, minimizes early fledges, and allows for easy monitoring. Recessed floor will not accumulate water, center drain hole should be checked every few months. Designed to keep water out, and nestlings dry. Attractive birch appearance complements the landscape. Lightweight with easy installation Long lasting vinyl/PVC cavity Roof option of cedar or matching poly-lumber (recycled plastic) Beware of knock-offs, get the original design by Steve Gilbertson for best results! Metal Conduit must be 1/2" OD  (outside diameter). Measures 8" tall x 4.25" diameter (cavity) Measures 9" x 7" x 1" (roof) Item Weight 1.5 lb. Material: PVC, Cedar or Poly Roof USA made See nest box overview and mounting instructions below: