1) What type of bird , age and weight (does the chicken seem or feel lighter or thinner than the others.) seven week old Barred Rock Pullet, weight unknown 2) What is the behavior, exactly. Didn't come out of the coop Saturday morning. She was VERY lethargic. I brought her out of the coop and she just laid down sort of on her side in the run. 3) How long has the bird been exhibiting symptoms? She was fine Friday and seemed better yesterday (details to follow) 4) Are other birds exhibiting the same symptoms? No 5) Is there any bleeding, injury, broken bones or other sign of trauma. None 6) What happened, if anything that you know of, that may have caused the situation. Unknown 7) What has the bird been eating and drinking, if at all. Plain clean water, organic wolf creek pullet developer. She was on medicated chick starter until two weeks ago. 8) How does the poop look? Normal? Bloody? Runny? etc. Unknown prior to Saturday. After I started liquids by dropper, first couple of poos were clear water 9) What has been the treatment you have administered so far? forced water and yogurt initially 10 ) What is your intent as far as treatment? For example, do you want to treat completely yourself, or do you need help in stabilizing the bird til you can get to a vet? Treat on my own, can't afford vet. 11) If you have a picture of the wound or condition, please post it. It may help. N/A 12) Describe the housing/bedding in use. 4'x4' coop with deep litter pine shavings that is a bit dusty. Increased ventilation on Saturday since I was concerned about using DL method in such a small coop. At first I thought her croup was blocked up, but I think I was feeling the wrong spot. I put her in a kennel inside because ants were starting to crawl on her. I gave her water with vitamins and electrolytes with a dropper and she had a couple poos that were nothing but clear liquid. Like the water went straight through. Then DH helped me force feed some yogurt and that seemed to perk her up. If we hadn't force fed her I'm pretty sure she would have died. She's still not bright eyed and back to normal, but she's eating and drinking on her own and following the rest of the flock around. She does not seem to have much of an appetite. I think she's really only eating cause she sees the other girls doing it. In addition to the organic feed that she's picking at, I am giving her some yogurt mixed with cooked egg yolks and the regular feed. She only digs in after a couple of the other girls do. All the other girls are 100% normal. I would think she's too young for a bad case of worms. Plus I haven't seen any in her poo. Or in any of the other girls poo. No lice or mites that I can find either. Vent is clear and looks normal. No runny nose or eyes. I'll check on her on my lunch break and give an update. I kind of wonder if she has a sensitive respiratory system (at least more so than the other girls) and the dust and smell from the DL method was too much for her. The coop usually doesn't smell, but we have had a few cool humid nights and the litter seems to soak up the humidity. I did add two 6"x20" windows to the coop Saturday after she got sick. I had been meaning to do it anyway. Can bad air cause sensitive birds to go off their feed? Any ideas?