I built these birdhouses back in 2016 to see if we could attract some birds to nest in them in our yard. There is one in the front by the driveway and one in the back yard. They work great! Sure enough, every spring a bird couple moves in, sets up a nest and raises their little family. About a month or two later, the family is grown, the baby birds move out, mom and dad leave and a week later a new couple moves in. They make great company while we are on the back deck enjoying a meal or playing in the back yard. When I made the batch I made extras for friends.