I found this site last night and joined straight away! The issue is that I have one Brown Shaver chicken, who is the oldest out of the flock, but she's always been a healthy strong bird until quite recently. She's been hunched up, walking around at an unusually slow pace with her tail feather dropping low. She's eating normally and also laying as usual, but doesn't look good at all. Her feathers have paled a bit around her face. All my other chickens are perfectly fine and laying so I'm guessing this isn't a disease of some sort. Is there anything I could do to help her? I hate watching her suffer the way she is Thanks~!