Wanted to show that the mother bird is still staying with the babies overnight. I had read that mother birds only stayed with them for one week after hatching. Perhaps it is because it is still cold at night. At the time of this image it was storming, with strong, cold wind-driven rain, something I always worry about. Thankfully the nest appears to have remained dry. This box was made for the heat of the summer, it's a bit larger with vents along the roof-line. These vents can be filled in during colder periods. I love this image.
Harold R Spencer Bluebird TrailBluebirdnestboxIowa