Basic birdhouse

This is a basic birdhouse that's easy to clean out. The front can swing open for easy maintenance. The roof can either be freely set on top or glued in place. The floor has drainage holes. There's also a hole in the back for mounting to a tree or pole. The default entrance hole diameter is 35 mm.

I added another birdhouse body and door file with ribs on the inside. My first version didn't have any tenants all season and I wondered if the slick inner walls made it uninviting, since the birds had nothing to grip onto once inside. I also incorporated a hole on the door for adding an optional brass bolt to act as a perch.