I'll fill out the form and then explain more and post photos. 1) What type of bird, age and weight?(does the chicken seem or feel lighter or thinner than the others.) Hybrid, 11 months and unknown but she is the heaviest of the 3 hens. 2) What is the behavior, exactly? Her behaviour is normal, eating lots, drinking, scratching at the soil. Perfectly normal. 3) How long has the bird been exhibiting symptoms? She has had the lump since yesterday morning. But again, has not acted differently. She was fine the day before that. 4) Are other birds exhibiting the same symptoms? No, they are all fine. 5) Is there any bleeding, injury, broken bones or other sign of trauma. No bleeding, but a swelling/lump in her neck. The feathers are gone over the lump, could this be a sign that she was attacked by another chicken? 6) What happened, if anything that you know of, that may have caused the situation. I have no noticed anything, she has been playing in the long grass at the back of the garden, possible sting from a wasp or something. My 3 hens don't fight but she is definitely the lowest in the pecking order. 7) What has the bird been eating and drinking, if at all? Her normal mix of chicken feed, leftovers like bread veg, yoghurt sometimes, things like that. 8) How does the poop look? Normal? Bloody? Runny? etc? I haven't seen her poop but there is no blood or runny poo in the coop or run. 9) What has been the treatment you have administered so far? Nothing as there doesn't seem to be much I can do, I could put antiseptic ointment on but as there is no open wound I'm not sure if I need it. Also it could encourage the attention of the others. 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? I would prefer to avoid the vet. For several reason, the main being cost. I am very low on funds right now and this would be a big blow to my financial well being. 11) If you have a picture of the wound or condition, please post it. It may help. see below 12) Describe the housing/bedding in use Wooden coop with pine shavings. It's firm but not hard. Almost like an egg, firm ball of liquid swelling surrounded by a more watery liquid. Its loose in the skin, like a testicle, frankly. It's warm too like when you get a swelling.