Hello, I know that this has been discussed here before, but I have not been able to find any answers. I have one hen out of 6 that is laying a daily egg with a shell so thin that it breaks when laid in the nest. She has been doing this for months now. The rest of the hens all have strong healthy shelled eggs. They have premium layer crumbles and oyster shell always available. They free range when ever possible. I do not know which hen it even is, they all appear healthy and run and move around together without issue. 4 of the hens are not quite 2 and the other 2 are just a year old. I was wondering if you could tell me if there is some disease or injury or defect that could be causing this? Is there something I could look for to figure out which hen it is? Is there something else I could be doing to help her out? Could she be hiding pain or discomfort? Thank you for any advice.