I've got a 15 wk old Dk Brahma chick, Frosty. When I went out to the coop to let everyone out this morning, she just stayed against the wall, kind of in a ball but just laying there. I went over and picked her up to check her out and instead of protesting, as they usually do, she just looked at me and let me hold her. I felt all over her, legs, wings, and no protests so I put her down and went about feeding the rest of the flock. She got up and kind of hobbled/wobbled over to the feeder and ate something, but she still didn't loook right. She's kind of hunched down and won't stand up straight. She did move around some more, but still hobbling/wobbling. I picked her back up and checked her out some more and still didn't find anything that was causing her discomfort. So I put her in solitary (24x30 rabbit cage w/small wire holes) and left her in the run with the others in the shade. I gave her some yogurt and put some apple cider vinegar in her water. She ate and drank it then went and layed down in the corner. I've checked on her several times and not much change. She is standing some, but still not straight up and kind of leaning on one foot more than the other