We have 5 hens and 1 rooster - Dominiques - 1 hen has been sickly for a while but seemed to be doing better. By sickly I mean her coloring - her comb is much paler than the other chickens and her legs are a deeper yellow. We treated them for worms a couple of months ago and she seemed to be better, but today, she sat in the yard and would not move. My husband actually had to mow around her. We are worried and do not want to lose her. Does anyone know what may be wrong or what we can do to treat her?