Buffy has been molting and looking pretty ragged.  She's even lost quite a bit of weight and has me a little worried.
I've read that giving a molting chicken more protein is important and I know that they can get picked on more by the other chickens because the new feathers is something interesting to pick at.  So I decided to put her in a crate inside the coop for a few days.  Each morning I made her some scrambled eggs and we mixed in some dried meal worms. 
I'm sure she wasn't happy to be alone in there, but I think it was good for her to have some solitude.  
Several days later she still looks ragged, but I can see the new feathers growing in so I let her out to free range for a bit.  Her ragged look was only more obvious to me then, next to the healthy looking birds.