I have a plymouth rock hen that is 20 months old going thru what I thought was a hard molt. She was shivering yesterday and it was in the low 30s. When she roosted I moved one of the other hens next to her. Now today she stayed in the roost all morning and I thought it was because she was cold. Just went to check on her and she can hardly walk. Trying to but seems the fall sideways. I brought her into the garage where it is warmer and gave her lots of hay in a cage and water. Made sure she was drinking. Also gave her some pumpkin because that is a favorite along with some feed. I attached some pictures you can see the feathers are just falling off her but she does have new coming in. Any advice is appreciated to help us thru this. Thank you.