I have been finding smashed soft shelled eggs on the coop floor in about the same spot for the last 2 weeks. I find one about every other day or so. I think the other girls smash it and eat it. I know for sure that 4 out of the 6 of them lay their eggs in the nest boxes. The hen that is most suspect is my dom that has vision problems. Maybe she can't find the oyster shell? We feel that her vision problems are genetic, She also has an odd shaped comb, that she's had since the vision issues. She can't get up to the roosts, we have to put her up at night. One thing making me scratch my head about it, the egg is always on the opposite side she is on and she's still up there when I find the egg. This makes me think it is one of the other girls. or the others move her egg to the other side. I have no issues with them eating their eggs. I have another dom that I haven't confirmed her laying an egg in the nest box yet. The two doms are both 20 wks old. I have found dom feathers in the nest boxes so I know the one that can see has been in it. If it is the dom with vision problems is there anything I can do to help her. She has no signs of illness, never has. I hope it's not another genetic " flaw" in her to always lay soft eggs.