Hope somebody can help with this or offer some advice. I bought a pair of young Cornish pullets from an auction. I have one of the girls that can't sit up right or walk well. She sits in the corner of her pen and sleeps quite a bit. When she hears others under the pen she will wake up and be responsive to them. She will eat very little and I'm not sure she is drinking much water at the time. Her feathers aren't missing but she does appear to have some brown and green poo stains near her vent. I don't know what to do. I separated her so the others wouldn't hurt her. Please somebody give me some advice.