It’s cute and has a nice design, but in my yard, HOSP would use that diagonal piece to clutch on and enter. Those pesky sparrows! I’d remove that diagonal piece of wood. Sparrows would sit on the roof of one of my boxes and lean down into the hole to bother chickadees, so maybe I’d remove that top strip, too. But that’s just me in this sparrow-plagued environment! I like the roof line a lot.