I have a year old Buff named Lily. She is my heart. Yesterday she acted like she didnt feel well,and was very lethargic. After a few hours she went to the nest box and laid a small shell-less egg.then she seemed like her old self. I keep oyster shell available to her I try to feed a minimum amount of scratch and whole oats No table scraps. I keep Crumble available in an automatic feeder. She is not crazy about Crumble but she free ranges so I haven't been too awful worried about that. But I don't know why she laid that egg, if it is a symptom of something more serious. I have been finding some of those shell-less eggs in the last couple of months but I have 2 eight month old hens and I thought it might be them getting ready to lay. I am SO WORRIED about her. Does anyone know what the problem might be?