Hello: To make a long story short- I have a small flock of hens. In the past month, one has died (we had her put down -by a vet who did it for free- because she was so sick.) One got very ill with all the same symptoms, we really thought she would die, but she somehow pulled thru and made a full recovery. Now another is very ill. She is unmoving in a box with a blanket on her to keep her warm. We have given her a little water with a dropper which she kept down. Last night I believe she was "kicked" off the roost by the others and when we found her this morning, she was in a pile below the roost. I think she was kicked off because I saw some younger chickens push her off once and am suspecting they did it again. Ok. So here's what you need to know. They are not laying (winter time). The sick one is 8 months old. We had a feces sample which showed no bacteria. We cleaned the coop out seriously weeks before this one even got sick so there is no chance of mold, etc. She looks otherwise healthy and fits all the perimeters of a healthy chicken. She was eating and free ranging yesterday though she has had low energy for a few days. Symptom of this "mystery sickness" is simply lethargy that gets worse and worse. We can not find one other symptom and we have done everything in our power to try. Could she just be tired from being kicked off the roost? I know it's more than that- but I think she could have recovered from whatever it was if she hadn't been made to sleep in the cold last night. My only guess at this point is that it's something they are eating in the yard. But I have no idea what it could be. We don't have any of the poisonous plants listed on this site. It's driving us crazy that we can't figure out what is going on. My husband is soaking some quick-gro so we can try and feed her some from a dropper..... Thoughts? Thanks.