My barred rock was the only hen not to lay an egg today. This evening at bed time, I was tucking them in and she went in the nest and laid a perfect egg.. no shell. It was so odd to see her in the nest at that time of evening. It looked like someone had cracked into the nest as in a frying pan. They get layer feed, oyster shell , and water, free choice 24/7. They free range on 2 acres eating greens, worms, etc. They get freshly home made yogurt with either brown rice or oatmeal every morning. Scratch in their pen and sunflower seeds thrown outside for them. This has never happened. I have been getting 8-9 eggs per day. Today I got 8 and then this egg with no shell. What went wrong and what do I do to help? Thank you, Ellie UPDATE: I just went out and looked at it... it was in a sac that looks like a surgeons glove or brown balloon.