My wife is insistent that we turn this piece of wood from a tree we had to remove, into a birdhouse.
I’m thinking I need to build a box behind the piece. Unsure of dimensions, and if I should fill in the hole a bit so only the smaller birds can get in.
Southern Ontario, Canada, as that may matter for native birds/sizes. More photos below.
Edit: spelling, grammar.


I read that as “Helping me design the birdhouse” and I spent five seconds looking for the cat that isn’t there.
They’d be out here in my way if I’d let them.