Basic birdhouse

thingiverse

This is a straightforward birdhouse that's simple to clean out. The front swings open for hassle-free upkeep. The roof can either be freely placed on top or secured in place with glue. Drainage holes are built into the floor. A hole in the back allows for easy mounting to a tree or pole. The standard entrance hole diameter is 35 mm. I added another birdhouse body and door file that features ribs inside for extra support. My initial version didn't attract any tenants all season, so I wondered if the smooth inner walls might be unappealing since birds need something to grasp onto once they're inside.