Of course this post involves my favorite hen... Her name is "Big Mama" and she is an Isa Brown. She's 2.5 years old. She's always been right next to my side when I'm outside, and up until recently has always been on the top rung of the roost. She has occasionally acted ill for no apparent reason (fluffed up, barely eating, etc), but rallied every time. She most recently started acting ill about three weeks ago, and no matter what I do she isn't getting better. Due to the vet being out for surgery, I wasn't able to get her in until this past Thursday. By that point, she was standing in one place all the time with her feathers puffed up, not eating, barely drinking, getting thinner, general lethargy). A few days before the vet visit she had bright green poop under her spot on the roost which freaked me out. I read in other posts here that it was a sign of only bile being in her system, so I fed her with a syringe several times throughout the day and gave her some dried meal worms which she actually ate on her own, and that went away. On Thursday, the vet did a tube feeding of about 40 mL which did not perk her up--in fact, she seemed as though the weight of the crop was making her face plant towards the ground. The vet didn't locate any egg binding or obvious reproductive issues (I don't think she's been laying for several months). She prescribed SMZ TMP 1ml twice a day (antibiotic) and metacam .15 ml once a day for any pain she might be in. I put her back in the coop Thursday, but brought her into the house Friday morning when I noticed her standing under the ramp to the coop with her eyes closed. She slept in the house last night because it was going down to freezing last night and I wasn't sure how she would fare in the coop because she had been trying to sleep on the floor in the corner. On Thursday she ate a container of 100 live meal worms and finished them off pretty quickly, but other than that she will not eat on her own. I tube fed her yesterday and today (about 50 ml each time), and she fights me when I do this. Today she drank a couple sips of water, but only when I held the water up to her face. The picture was taken just a little while ago. This is how she's been most of the day. I toook her outside when I went to check eggs, and when I sat her on the ground, she stood for a minute and slowly sank to the ground and laid there so I brought her back in. Is she too far gone at this point? I don't want her to suffer, but she is my pet so I don't want to lose her if I can save her either. Please advise.