So, it's been a while since I've been on the forum. There's been some issues along the way (one hen was lame when she started laying, another had broken some newly growing feathers on her leg and was lame, etc) but nothing serious, until now. I guess I'll start from the beginning with the hen that passed. She's the hen that I had questioned that had wry neck when she was a chick, at about a month old or so. She had looked like she had a shorter neck in comparison to the other hens. Not twisted, not bent, just ..... short or tucked in. She never really acted like the other hens, but she ate and drank perfectly fine. I gave them all a vitamin and electrolyte in their water to be on the safe side, and she seemed to be perfectly healthy other than always looking like she was keeping her neck tucked in. Since she seemed well, I never thought about it again. Then a few months ago I had noticed that she wasn't acting normal. All the of other hens & the roosters were outside free ranging, and for the second day she just stayed inside on a roosting bar more than usual. Having just taken care of Olive that had an impacted crop after eating hay with the horses (gave her olive oil, thus the name!), my first thought was to check her crop. Her crop was large, felt like a balloon, and she had a bad odor coming from her mouth. Yep .... sour crop. I had gotten her to throw up, separated her from the others, and gave her Nancy's Organic Plain Yogurt a couple of times a day until she felt better .... and I had named her Nancy. It only took her a couple of days to start acting better, and so I put her with the others. Since then she became more of a loner than what she already had been. She almost always stayed to herself, rarely went out to free range, wasn't was alert and perky as the others, but her eyes were clear and she ate and drank perfectly fine. This morning, when I went in their stall to check on them, Nancy was standing at the door, odd since she was usually on one of the roosting bars. When I went to shoo her out of the way she was very wobbly, like she was drunk. Her legs were straight as they should be and worked fine, but her balance was pretty much non-existent. When she'd try to walk she'd fall to one side or the other, using her wings to straighten herself out, or (less commonly) she'd fall forward. Her eyes were clear and of proper color. I separated her, raised her food and water. She had a desire to eat and drink, which I thought was a good thing. By the time I got out of work and went to check on her, she had passed. I feel bad as I didn't really have the chance to help her, and I'm completely clueless as to what was wrong with her or how I even could have helped her. I'm not really shocked, as she's never really been fully normal, but it would be nice to get some opinions and possible answers.