Over the last week I've watched one of my fav hens (road island cross) become poorly. Her beautiful red comb has now flopped to one side, her droppings are white & watery, she is not eating v much & she hardly stands at all. She seems to have lost all strength in her legs. Her tail is definitely pointing downwards & her whole body appears to be drooping. I moved her to a quiet place with fresh waster & food but am unsure of my next step (if there is one). Can anyone suggestion anything please...