I have 12 7 wk olds together. They arnt getting much for treats. Oatmeal or rice at breakfast, occasionally lettuce or left over potatoes or eggs. The only thing they get every day is their breakfast. Moved them into coop on Sunday. All else seems well. I am pretty sure it is only one of them because its not all over the coop. It smells almost acidy?Is someone really sick? Any advice? Oh yea, its a milk chocolate kind of color, not dark and not white. Thank you for your time everyone.