I have a hen that was in her nesting box for 2 days and now is under the weather. Her comb was purpley blue and I thought maybe she got frostbitten but now she is really lethargic, not eating, not drinking but still pooping. She's not even eating bread which to my chickens is an absolute treat. I pulled her out of the coop and have her in the basement in a cardboard box open at the top. She is not egg bound I just checked and her gullet doesn't feel full. She was drooling when I picked her up before and I don't know what is causing it. She's not weezing, or having difficulty breathing just seems off. None of my other chickens from the flock are sick and I am worried that she might not pull out of this.