Update: Just added a pin connection system for the 2 main parts, align the holes, put glue, and put the pin in it!

This is a basic bird house, put the pin in the hole in the front and put some glue, hot glue or super glue would work better, sand parts slightly to give some grip and also craft glue will work in a pinch. To secure the 2 main parts, use the pins, align the holes, put glue, and put the pins in.

Important stuff: Use support material Use a higher infill for the files named "RoofSecuringPinImproved" as they hold the main body of the birdhouse to the roof which has the connection points.