My sweet, quiet little buff chicken (Esther) is having some trouble and I don't know what to do. We noticed on Saturday that in the nesting box there was what we thought was a broken egg. However, upon closer inspection there was something seriously wrong with it. The yolk and white stuff was separate and then there was this rock hard white gritty thing beside it. If we had roosters I would have thought it was a baby chick - that is how deformed it was. We didn't think too much of it. This morning I went out to check on them and there was a broken egg in their run. They were eating the raw egg!! I looked at our hens (we only have 5) and saw Esther was struggling to get something out of her vent. Upon closer look it was the shell. Why would this happen? Why is my 7 month old hen laying eggs without the shells surrounding them?