Nest Box
This nest box is constructed following the guidelines of The Cornell Lab Nest Watch.
This shelf is specific for: House and Bewick's Wrens; Black-caped, Mountain, Boreal, Chestnut-backed, and Carolina Chickadees; Juniper, Black-crested, Oak, Tufted, and Bridled Titmice; Pygmy, White-breasted, Red-Breasted, and Brown-headed Nuthatches, Prothonotary Warblers, and Flying Squirrels.
Dimensions
5 1/4" long X 7" wide X 11" tall
Material
This nest box is made of white untreated wood.
Opening Size Selection
Entrance hole diameter is 1" for House Wrens, Brown-headed Nuthatches, and Pygmy Nuthatches.
Use 1 1/8" diameter for all chickadees and Bewick’s Wren.
Use 1 1/4" diameter for White-breasted Nuthatch, Red-breasted Nuthatch, Prothonotary Warbler, all titmouse species, and Flying Squirrel.Entrance holes 1¼" and larger will admit House Sparrows so only use the larger diameter in heavily-wooded areas where there are few House Sparrows.