This question I am sure has been asked a million times so please forgive me.......I have 6 hens, they began laying August 26th.....I have gotten 6 eggs on 3 separate occasions so I know all 6 are capable of laying hard shelled eggs. I randomly have gotten a yolk and thin shell about once a week. Today I went to let the girls out at 6:15 am and saw 2 what looked like eggs on the roost. The one in back is like just a yolk with membrane however the other is the size of an egg but intact and NO shell at all. This is being done while "sleeping" They are fed Dumor Pellets, oyster shell, grit and free range a few hours in the afternoon.I don't know which hen it is or how else to prevent this any ideas would be helpful THANKS! Can this be from one hen??? The one I think it may be (do due to saw her sleeping in area last night) has been laying random JUMBO double yolks.