Carol the box and nest is clean, no critters. But I think you have hit on something I hadn’t thought of, that they have a nest somewhere near by. The last couple of days, they have not come together to get their mealworms. One and then the other, maybe incubating at anoter location. Strange, because he is so protected of her. If another bird comes near he will circle above her while she eats. We watched him chase a squirrel away when it came near the feeding post. Thanks for your reply and I will just wait to see if they bring any babies to eat.
Even without new babies they are still enjoyable to watch.