I don't have any helpful pictures unfortunately because I needed to hold her with two hands. My beautiful pullet Gertrude (a coronation sussex) has always picks the feathers around her wings. I thought that was her thing. The other day, I noticed she had a droopy wing. I instantly blamed my 5 year old daughter of breaking her wing and ran to check Gertrude. When I handled the droopy wing, I felt a huge, heavy mass, maybe 1-1.5lbs. I moved the feathers and saw a black, scabby, pussy mass visible on the upper and lower side of the wing. The size of the mass (on both sides of the wing) is about the size of my palm. We're talking LARGE. And HEAVY. I hadn't noticed because Gertrude has been acting (and still is acting) alert and hungry. The only other sign of distress is that the eyelid on the side of the injured wing is slightly closing. It's not as open as her other eye. But, the mass did feel warm and feverish. Question #1: What is it? Infection? Abscess? Tumor? Injury? Marek's disease? Bird cholera? Question #2: What should I have done with it? So, later that night when my husband was home, I made him help me try to remove it. Because the mass felt warm, I assumed it was an abscess and I thought her best chance was to eliminate the infection. Poor Gertrude lost alot of blood as my husband (incidentally, he's a physician who knows nothing about animals) cut and opened holes on both sides of the mass and tried to clean it out. What we decided we saw was alot of necrotic tissue. I should mention that as he began to cut, INSECTS STARTED EMERGING FROM THE BLACK SCABBY TISSUE!!! We thought they were maggots but they weren't wormy like maggots. They looked like tiny bugs. (Oh, it was horrible. I'm still in shock.) He removed as much yellow-ish clumpy material as he could find in the mass but it is still hard and huge. here is a picture of the droopy wing and you can see a slight bulge. here are pictures of the type of stuff we pulled out. It did not smell nearly as bad as I thought an infection should have smelled. So, does it look like it was an infection? Does it look like a tumor? Could it be something else? Now Gertrude is in a plastic bin for "recovery" with neosporin and gauze stuffed into the HUGE cavity in her wing. She is still alert and hungry. Now what? Question #3: What should I do about Gertrude now? Continue cleaning & dressing the wound every day? Or put her down? Questioin #4: If I should put her down, what is the most humane way to do that? Question #5: Should I put her on general antibiotics? And if so, where do I get them? Question #6: Should I treat the whole flock (of 3 other hens) with antibiotics? Should I treat the whole coop with sevin dust because of the insects in her wound? Do I just use the Sevin you buy in Home/Garden stores? Please help me if you can. I really appreciate input & suggestions from people who have gone through this. This was just so traumatic and I feel horrible, HORRIBLE for Gertrude. I can't believe I didn't see this sooner (I hand feed them everyday) and I'm so worried I've done something wrong. I had horrible dreams all night long about Gertrude and the suffering she must be in. So, thank you in advance for any advice/help.