Hi all, I'll preface this by saying that I've spent nearly two weeks now trying to figure out what is going on with this hen, including a LOT of reading through BYC. So far, no luck. I'm working with a nearly 6 year old buff orpington (quite old, I know) who is presenting a host of confusing symptoms. The initial symptom set was a progressive loss of control over her legs. I was first aware that something was wrong when I found her standing in the corner of the laying section of the coop in the evening. The temperature was around -30F outside, probably around -10F to 0F where she was standing. I brought her in for an evening, then brought her out the next day. At this point nothing seemed unusual, and no signs of frostbite. Two days later I brought out the morning fermented feed and I noticed the hen was hobbling - clearly some problem walking. When I brought her in and set her up on my indoor roost (just a closet door I keep open) I noticed she was having balance problems. The next day she had lost complete function over her legs - I ultimately had to make a sling for her, which works quite well. The leg paralysis is unusual. Sometimes it presents as one leg forward, one leg back - usually it's just both legs locked forward so that she is resting on her back end. This only presents if she is bearing any weight on her legs; when she is in the sling she sits with both legs tucked under her, toes curled. If I set her on her feet unsupported she "kicks out" in what seems like convulsions for a moment, then both legs end up locked forward. I thought this looked like some sort of vitamin deficiency so I've given her a fair amount of vitamin E and vitamin B complex along with her fermented feed. Neither of these seems to have had an effect. Meanwhile her appetite has been steadily decreasing, to the point where she shuns everything (even scrambled eggs) except chicken crack. Two days ago I noticed she wasn't drinking water and started giving her water using a dropper - after about 10mL she began convulsing (legs and wings), and turned her head back several times. This was followed by what is best described as two rounds of broody poo, and an hour spent panting with her mouth open. I've continued giving her water with electrolytes mixed in, but her appetite has stayed poor and she spends much of her time sleeping. I have noticed that there will be a sound much like when a person's stomach rumbles, and this is accompanied by a brief bit of higher pressure in her crop. This is fairly recent. Her poo continues to be infrequent, large, on the runny side, and dark green. No signs of lice or mites. No signs of subdermal tumors a la mareks. I don't believe she is egg bound, given a physical check and a 30 minute hot soak. Despite the declining appetite and refusal to drink, she has remained quite vocal (she is very upset when I turn off the music) and will even make raptor sounds now and again. At this point I am well aware she is unlikely to live, and the decline in appetite may indicate she's ready to be done. I just want to figure out what the issue may be. Worst comes to worst I'll be donating her to the veterinary medicine program at my university for a necropsy if they're open to it come Monday. Any help or insight would be much appreciated. I think there are multiple issues here that may have been keeping me from figuring out the initial problem. Thanks in advance for any help!