I have been keeping hens for about a month, today I have my first emergency. I found one of my Golden Comets on the coop floor this morning, unable to stand. I moved her out from the others (who are all still fine) She is lethargic, eyes closed, won't eat or stand. Her comb seems to have some white dry flakes on it. I tried to feel for an egg, in case she was egg bound, but I didn't feel anything. Any advice on saving her, and also protecting the others?