ーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーー I have checked a nest of swallows near my house every weekend. I will show some pictures that I took its dated on May 4, 2017. Swallows are very smart and beautiful. They already finished building their nest, it was time to lay many eggs.