I have three hens, just barely 6 months old. They get along well... we've never seen them pecking at each other, and they all sleep shoulder-to-shoulder on the same roost. We came home this afternoon to find one of the hens with a bloody, nearly detached comb. It looks like it's hanging on by about a 1/4", and is drooping down over her beak (looks rather like a turkey, actually). The other hens don't seem to be pecking at her. Do I do anything about it? I'm worried mainly about her discomfort and the possibility of infection. Are these things I need to worry about? Thanks!