TNT  

In this video the 'ask' was to build birdhouses that would not rot, and not rust. This idea came from my lovely wife and what I came up with was a birdhouse made from 4" PVC pipe and some left over Trex decking I had at the barn. If you do not have ready access to the composite decking I would use cedar, and plan on using cedar the next round, not exactly rot proof, but at least rot resistant. If you are looking for a fairly simple birdhouse design/build, give this one a try. Let me know in the comments how it goes.
Link to Stainless Screws: amzn.to/3TfnoKL
Link to Plastic Dowels: amzn.to/49H3mzg
Link to 1-1/4" spade bit: amzn.to/3OViAZx
When you do any shopping on Amazon after following one of my AMZN links, Amazon is kind enough to kick back a few cents from your purpose for the channel, and that really helps us out.