So he did.
He looked up some plans on google, and after weighing the options, decided on the wren house. (It's also suited for chickadees.) Then he went through our scrap plywood pile and found some random pieces that were roughly the same thickness and went to measuring and cutting.
We just got a new hand saw that cuts really well so I think that helped in the motivation. And we were tired of being cooped up in the house.
I helped a bit with the nailing together because it required more than two hands, but other than that, from start to finish this was all his own project. It was so easy and quick, I think we're going to have a few more birdhouses popping up around our yard in the next few weeks.
He painted it the same color of our house so it blends in. We'll see if the wrens like that or not.
Here it is right next to one of our windows so we can spy on them. We've seen chickadees checking it out here and there. I hope someone moves in soon!
Oh, and here's a house finch and northern flicker in our front yard just for good measure.