Rustic Birdhouse at 1:12 Scale. You could conceivably resize for an actual birdhouse you can hang in a tree. At full size the hole would be 1-1/4" in diameter, the right size for a number of different birds such as Nuthatch, Wren,Titmouse, and a Downy Woodpecker.

The roof is printed on edge to cut down on required supports. You can remove the rings if you do not wish to hang it. Roof can be glued to the Birdhouse with epoxy or some other waterproof glue if using outside.

Based on Woodsmith Issue 57