What a whoppa! First time this year we have 8 eggs from 8 chickens. Our new layers that we hatched ourselves last August are now up to size and speed. That is honestly a genuine chicken egg, but we think maybe she was egg bound yesterday as she was walking funny. Gave them some apple cider vinegar in their water and out it pops. Must have hurt!! Believe me, the other are normal size, not small at all. We regularly get a double yolker from one of the girls but it is not this big. The shell seems to be "wrinkled" too. So I'm thinking that while this is interesting and amusing to us, could signify that she had a problem. Advice welcome.