1) What type of bird , age and weight (does the chicken seem or feel lighter or thinner than the others.) Salmon Faverolle, 1 year, unsure of weight, but seemed about the same as the others and had a full crop last night and a half full crop this morning 2) What is the behavior, exactly. She was behaving light her usual crazy self right up until yesteday am. She didn't want to range with the others and stayed on the floor of the coop, no egg, kind of fluffed up a bit. She was not on the roost last night, but went under the coop, I fished her out and she just sat limply in my hands. Her comb looked a little odd, not exactly pale, not blue, but pink with rough whitish bumps on it. She didn't have any odd odor, but her poop was particularly smelly and green.She did drink a bit for me and was still trying to eat, so I let her be for the night (it was late when I found her outside). Her eyes were clear and she didn't seem to be laboring to breath. No discharge from her eyes, nose, or mouth. She didn't seem to be eggbound, but as I am still new, this is possible (her abdomen didn't feel hard or full in any way though and she has been laying for several months now). This morning she was sitting on the floor again and was very droopy, her comb looked a little purple on the tips and the whitish rough spots were worse. I was carrying her into the house when she puffed up, had a few tremors, then died It was like she waited for me to come get her. She had a very foul yellowish poop. I smelled her mouth/nose area and it has an awful smell, hard to describe. She still had no nasal or occular discharge. Her mouth was a bit mucousy, but that was only after she died (perhaps that is released when they die?). 3) How long has the bird been exhibiting symptoms? This started yesterday am. 4) Are other birds exhibiting the same symptoms? No, but I had one die a few months ago that went blind first then repeated bouts of spasms, then died. 5) Is there any bleeding, injury, broken bones or other sign of trauma. No, other than the usual rough looking saddle area from our roos. 6) What happened, if anything that you know of, that may have caused the situation. She was out ranging a lot lately and could have gotten into something, or she has an infection, those are the only two things I can determine. 7) What has the bird been eating and drinking, if at all. She had a full crop last night and a half full crop this morning. She eats all the usual forage plus pellets and some scratch. She even was drinking last night when I brought her in. 8) How does the poop look? Normal? Bloody? Runny? etc. Green and loose last night, yellow and pasty this morning 9) What has been the treatment you have administered so far? None, this happend so fast. 10 ) What is your intent as far as treatment? For example, do you want to treat completely yourself, or do you need help in stabilizing the bird til you can get to a vet? NA 11) If you have a picture of the wound or condition, please post it. It may help. NA 12) Describe the housing/bedding in use 10x10 coop with tons of ventilation, pine bedding that was changed two weeks ago and freshened last week. I will be looking around the property for anything poisonous, but didn't find anything the last time I did this. Should I be worried about infection in the rest of the flock? They were all vaccinated for Marek's.