I have a couple of wren houses. The openings are too small for sparrows, but the sparrows still check them out. They hop all around the branches trying to see if there is a way they can get inside. Then I got a couple of bluebird houses. Those are taller. The sparrows took quickly to them, and it's where they make their homes.
This birdhouse was also taken over by a sparrow this year. The bird was lying inside with its head facing out and its eyes shut. When it opened its eyes, it became startled and flew off quickly.
