Yesterday I noticed my beautiful red just sitting by herself in the yard near the drinking water (drinking often). I was able to simply pick her up which is always impossible. I hand fed her some apple and she did eat it(with some coaxing). When I picked her up I found how skinny she was. Her plumage was still beautiful and she had no pasty butt. I'm not sure what her poops were like since they free-range part-time and have a huge run. I haven't seen or smelled any bad poops in the coop or run. I just went out a few minutes ago to grab her and bring her in for the special treatment. I brought her in, put her in the box and she died. I didn't notice any raspy-ness with her but I can hear it in a couple of my other hens. I wonder if I should treat the whole flock? There's 2 roos & 7 pullets, & 7 hens. Most seem absolutely fine (other than one in molt with raspy sound) but I'm worried something is going around and don't want to lose more. Also, I usually get about 6 eggs a day and now am down to 1. Living in NH, though, days are getting shorter & cooler, so I know eggs will slow down. I just didn't expect them to slow that much so suddenly. Any advice? Thanks in advance.