I had 12 chickens. In one coop is a Delaware Blue rooster (intimidates the girls) and in the other I had 5 buff orpington hens, an araucana hen and a Polish roo. On Friday I noticed the araucana and Polish were a little squatty and slow but I thought it was because the temp dropped 30° in a day. Well Monday morning the araucana was dead and my polish wasn't too far behind. I brought him in gave him probioticso and electrolytes for 2 days and he is back to his old sassy self. Last night I got home from work and it looks like one of my buffs has frost bite on half of their face and another one had an abnormal poop. The only new things are straw on the floor of the coop and some 18 week old chicks (that are quartined). I'm attaching the poop pic and I am trying to get a face pic of the other one.