Birdhouse - Barn Swallow

I printed, but I'm still refining to make it easier to cleanout and assemble the front plate. Based upon Lowes Birdhouse which has a roof which commonly breaks apart into pieces. Our barn swallows love the original wooden ones (see last picture), but they only last 2 years at best before they start to break apart. After having replaced approximately 10 of our 30 that I've purchased, Id like to start printing them.

I designed it to be printed on a Prusa mk3 printer in 3 separate pieces. It was my first design and first thing I designed with Fusion360 or cad program since...1997 shop class, so bear with me =)

It has 3 components which are designed to be printed in the orientation shown:
1) Roof and rear backplate (no support needed if printing in orientation shown)
2) Bottom/floor and rear backplate (Support from bed only)
3) Front plate which can be screwed off from the front and sides. The opening can be adjusted for what particular bird you'd prefer. (Support from bed only i