I was checking on one of my broody hens that was sitting on 4 orpington eggs that were due to hatch tonight or tomorrow and found that 2 of the eggs looked like they had pipped and was then flatten. One of the chicks looked like it was partially out when it was flattened. The shell was separating from the membrane. Did the weight of the hen do this or was it something else? They were ok last night and the shells seemed normal, not thin. Needless to say both chicks were dead.