The Recycled Ultimate Bluebird House by Bird's Choice features a 1.5" entry hole, viewing window, 2 engraved doors labeled "View" and "Clean" respectively, and a raised screen floor to redue blowfly infestations. It is also compatible to add a bird cam from the roof so you can watch the nesting on your TV. (bird cam sold separately)

Construction: 5/8" Poly-lumber made from recycled plastic milk jugs; aluminum rust-resistant continuous hinges; stainless steel screws.
Dimensions: 11" x 8.5" x 12.625"
Mounting: mount
Warranty: Lifetime guarantee from manufacturer never to crack, split or fade.
Made in the USA