One chicken was laying good eggs... another started laying just the yolks. I went to the hospital for a couple of days for childbirth, LOL! and I haven't been out there to check on them as often... well, I think that they started eating the yolk ones and now the hard shelled ones are disappearing. DH found a shell today and also a soft shelled one. What can I do so that they won't eat the eggs anymore?