I had 6 Serama eggs under a cochin hen. I candled them and everything looked good. They were supposed to hatch yesterday. Today one chick was about halfway hatched, but it was shrink wrapped tight. I pulled the membrane off and the chick was barely alive. It died a short time later. Another egg had pipped with a tiny hole. I opened the egg and the chick was dead. The other 4 were dead in the shell. If these had been in an incubator I would think that maybe the humidity was too low, but these were under a hen. It has been raining a lot here and North Carolina is a humid place most of the time. Last week I hatched 11 silkie chicks under a hen with no problems, and I had 5 of 5 turkeys hatch today. Four weeks ago I had a successful Serama hatch, so what could have happened with the latest batch?