I think you are right. Birds are smart. They don't get enough credit.
I have a shed full of wood to make birdhouses from. I'm going to make some nice nesting shelves for robins, to start with. I'm plan to mount them up high under the eaves, where the neighborhood cats can't get to them. I am in the same camp, of doing what's right for the birds. I don't need those cute-sey birdhouses with bright colors, metal roofs and wrong sized entrance holes.
ISFP "The Artist"