Usually, when I have a bird that looks very sick, that bird is almost always deleted, without discussion or fanfare. Better to keep all laying/meat/breeding stock free and segregated from ill birds, in a definitive way as my dad would say.
In any event, about 2 months ago, I noticed one of my foundation Chantecler hens had begun to look very tatty, her feathers stuck out like she was showing a lot of the White Wyandotte breed that is part of this breed's makeup and the bird was especially un-kept and dirty. But she was eating and drinking okay but stayed by herself and would refuse to eat much of their evening BOSS treat. At that time, I wasn't aware that I was going to get the wonderful infusion of 'old-family' stock that I now have in my possession, in the form of 10 and 10, cockerels and pullets, located by my Brother and I was not quite willing to dispatch the foundation hen because of the way she had looked just a few months before.
To shorten this a bit, she just about had her neck rung.
Starting about two weeks ago, she began to blow feathers from every part of her body, literally. It soon became clear that I had been witnessing the most dramatic molt that I had ever seen. She still has a large fan of large pin feathers coming in at her hackle area that gives her a partially bald look but it fills out more every day. I will say, I'm glad I held off doing business as usual this time because she is beginning to look as good as she did when I first got her. She hasn't returned to laying yet but I think it's just a very short time coming in the future.
I'ts easier for me to see why you folks aren't as quick a I an to 'off' your birds because you only keep a few. I was in short supply of these high quality hens and didn't want to kill one that wasn't really displaying obvious illness, just discomfort from such a massive feather blow.
TURK