I've already posted this question, but I thought I'd give a little more detail. I have six red sex-links that almost always give me six eggs a day. Lately, one the hens hasn't been laying. Yesterday I noticed that she was ruffling her feathers, pulling her head in, and staying away from the other chickens. Even when I put some grains in the coop for a treat, she just kept standing outside and occasionally pecking the ground. She's still eating and there are no signs of pecking or cannibalism from the other hens. She was standing in the run when she suddenly dropped a shell less egg. It had a slimy white paste all over it and I immediately threw it out. A haven't looked closely but her droppings seem normal. I'll have a closer look later today. Is this disease or just an occasional fluke? Thanks for any help.