I have a 2 year old BR hen that hasn't been the same since molting last year she seems worse. Very whimpy doesn't leave the coop much tail feathers always in a down position comb looks good seldom lays eggs. See photo . Any suggestion?
Have you checked her feet for bumblefoot? It affects the bottom of the foot and can cause the limping. It would be best if you took her to a vet so she could have a thorough examination and tests. It's awfully difficult to diagnose a bird over the internet, and limping is just one symptom out of several in your intro.