Yesterday was the day, Gayle started her second brood, and added another egg this morning. As soon as the egg was laid, I put a Wren guard on the box to keep the tiny destroyers out of there. It is like a visor for the nextbox that hides the entrance hole from sight, so that the Wren does not see it and thus, will not explore it and destroy eggs or babies. Since the BB has an egg in the box, she is bonded with it and will overcome any possible fear of the guard. Only the BBs know that there is a nest there, so it gives a bit of safety. We will see how that goes. The BBs have one advantage - they have at least four of their first babies around that can possibly help to defend. The guard will stay on the box until the babies are about 5 days old. Then they are too big and heavy to be drug out by the Wren. And here is a pic of two of the first babies with Dad at the feeder!