Put Bo back to bed after the last post in an isolated part of the coop. He can still see everyone else, but he can't get any food, but has access to water. I set him on the ground to sleep since I didn't want him falling off the perch anymore, and the ground is softened by some shredded paper that one of the hens got to while trying to make a nest, but didn't soil the paper. The other chickens eat the newspaper I put down sometimes, but Bo and the two older hens seem to have grown out of the habit.
Right now when I checked on Bo he was bright-eyed and alert, and he's cooing to me to let me know that he's ready to wake up ( my chickens don't tend to "wake up" until I roll the curtain up from the coop ). He's almost back to his wonderful little self! Hee~ He's talking with Bowser, and it sounds like they're standing right next to the divide, exchanging squeaks and whines.
A couple minutes later... opened the coop, and Bo's acting as he normally would. He's bright, he's alert, and the whole floor is covered in oily dung. Just gave him some water and he pecked at it, but seems to be more interested in wondering why he's separated from his flock, and why the little runt gets the girls!
That being said, what is "ACV"? Another thing to look for at a feed store? The nearest feed store to me is a few miles off of any bus routes, and my bike isn't in the best conditions for long travel, but I have many, many grocery stores, organic outlets, speciality spice stores, etc. within reach. I live in what I would call a "hippie town" - everything is about locally grown, organic, go-green kind of stuff. We even have an abundance of energy healing places, albeit I've never been to any of them... but just to give an idea of what's around and might be available. Also, house mates said they do not have copper sulfate.
My "cure-all" for my chickens is plain yogurt ( no sugar, like you said ), a pinch of crushed garlic, plenty of vinegar, and then plain rolled oats for texture since they like eating the mush better when it has texture. It's worked wonders for me in the past, and it's all stuff I can get on food stamps ( albeit, my food stamps are exhausted this month, too ) or the food bank... I might be able to ask the local Gospel Mission for help. A lot of people around here own farms, and I'm pretty well-known as "the guy with a chicken on his bike" by now... Might be time to cash in some favours!