I am new to the forum and was hoping that someone would be able to give me some advise to help my chicken. She is around 2 years old and is a rescue hen. Over the past few days I have noticed she has become unstable on her feet and even the wind has blown her over. She does not seem to have the strength to get back up. She is eating and drinking, has slightly runny poo but apart from that she seems fine. I have read the info on Marek's and do not think it is that. She has only just grown back her feathers after a year of having her, she is also underweight but has been small since I have had her. Any advise would be grateful!