Maryland is a RIR about three years old. She is going through a hard molt. Almost bald but feathers is coming back. She is also wobbling like she is drunk.She is a trooper. Still getting on the roost and eating with the other girls even tho they like to peck at her. We live in Missouri and the weather here is crazy, 70 one day and the next it will be 30 degrees. I am not sure if that is a factor or not. Our other 13 chickens seem fine. We found a possum in the hen house a few days ago. Does anyone know if she could have cough something from that possum? Should I bring her in? She is in so much pain with her feathers that we try not to touch her.