What sweet pics zen, how adorable. We too have barn swallows that have built a nest in our shed where the lawn tractor is this year, along with the yearly return of the robin. One year, a robin built a nest in the outriggers of DH's backhoe, he tried several times to stop the construction, but they were determined. She had 4 little eggs, and they took a couple small tours of the country side as he had to do some small jobs, but once they hatched, all work with the hoe was put on hold until the nest was empty. My DH and I love to watch all the little ones. The last 2 years, but not this year, we had killdeers build a nest in our driveway, and the little fuzzballs were so cute. A big round fuzzy body and long legs. I missed them this year.