Hi, I would appreciate input on how I can help my sick hen. She is a 2.5 year old Chantecler, one of a mixed flock of 7. She hasn't eaten or drunk much, if anything, over the last two days, droopy tail feathers, sitting around all day, didn't roost last night, but slept on the ground. No fever, no sneezing, no diarrhoea, no egg stuck that I can feel. No change in feed. She is just growing in her feathers after molting. The hens spend their time in the barn, with access to a big run, which they currently just share with 4 geese. They used to free range, but after a fox attack 4 weeks ago I haven't let them out. They are on a 16% layer feed, which they have done very well on for the last year or so. They have never been wormed, as I haven't seen a need. Could that be the issue?