Thanks! I have another old, weathered birdhouse on a fencepost. It even has a shingle missing on the top of it and it' being utilized by a pair of Eastern Bluebirds. I laughed the other day because I was watching them bring food back to their little ones and instead of using the regular entry hole - they were feeding them from the hole in the roof. Silly birds. I started wondering if it's because that particular house is obviously more ventilated than the other. I was really worried about them when we had so much rain a week or so ago, but they are definitely feeding young ones so I guess they survived!