1) What type of bird , age and weight. Golden Comet hen. I'm not sure how old she is. Was already grown when we got her about three months ago. Ppl I got her from said she was an adult when they got her too. She has lost a lot of weight. I'm not sure what she weighed when we got her but she is only about 2.5lbs now. 2) What is the behavior, exactly. She is not active but not lathargic. She sits in the nesting box but hasn't layed anything in weeks. I don't think she is broody tho. 3) Is there any bleeding, injury, broken bones or other sign of trauma. No signs of trauma 4) What happened, if anything that you know of, that may have caused the situation. I don't know if it maybe feed related. Most of my other girls are pullets so I have been feeding them started/grower feed and supplemnting the three older girls with oyster shell. I have three that are of laying age. After a while everybody stopped laying. Pullets are older now about four and a half months old. I swithched to layer feed. My other two hens started laying again but the GC has not. The last few eggs she did lay were very thin shelled 5) What has the bird been eating and drinking, if at all. I just gave her some mealworms and she gobbled those down but was not interested at all in regular food even when I mixed a can of tuna with it. 6) How does the poop look? Normal? Bloody? Runny? etc. I don't know how her poop looks. She is in with 12 other chickens. As a whole I haven't noticed any irregular poop. He bottom has quite a bit of poo on it tho. I checked outside of her vent and don't see anything protuding 7) What has been the treatment you have administered so far? I gave her an external and internal exam. She is all feather and bones. I did not see or feel any masses or pieces of egg shell. 8 ) 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? I will be treating her myself 9) If you have a picture of the wound or condition, please post it. It may help. No pics just a poor skinny comet with a droopy comb and poopy butt. 10) Describe the housing/bedding in use. she is in a secured coop at night. Let out in the morning into the run that is moved once a week or so to allow for fresh grass and let out to free range on the weekends and of the afternoon. also, everone was treated for worms/lice/mites last weekend. Everyone else appears to be doing just fine.