We have 6 bardrocks they have been laying for almost a year. Lately we have one girl laying a egg that's very thin and soft on the top. Either she or one of her sisters are in the habit of eating the egg and the only thing left is bits of the shell. We have tried extra calcium, Doesn't seem to help and am afraid to give them too much. Also afraid the other girls might get in the habit of dinning on eggs. I'm going to try and add some vitamins next time I go to town. Just wondering if anyone has had the same thing.