Welcome to BYC, and glad to have you. I also have a lame hen who seems to be puttering along. I took a dog travel crate I had lying around out to the chicken pen, and put some fluffy bedding in it. She seems very happy to climb in there at night. I put a nesting pad in there made of what seems to be excelsior (shredded wood in sort of curly threads). Scratched up, this has made a very fluffy, soft bed for her that seems to make her more comfortable at night. I am pleased that she is still following after the other birds, and comes out to free range. But the boss hen has been pretty tough on her, and I think she enjoys having a safe place to rest. She will often lay eggs right in the dog crate.