Revisiting a thread from 2011. I have a 2 YEAR OLD rooster (not a chick) with this issue. up until mid December he was fine. Now he sits on the ground, with his legs pushed forward, and moves around by scooting backwards. I posted the following to a chicken veterinary site and they said probably no hope. Anyone else have any other thoughts before I euthanize him? Points to consider: 1. He is 2 YEAR OLD (not a chick) 2. He was vaccinated for Mareks as a chick 3. This just over a month ago, has not been a lifetime issue. And it worsened over a period of about 7 days, initially he was just stumbling 4. He is in a closed coop and I have seen not evidence of issues between birds. 5. He has been treated with antibiotics and anti inflammatories. This made it better but the problem came back. 6. I have never fed moldy food I have a very special chocolate silkie rooster (his name is CB) with a bad problem. He sits on the ground with his legs pushed forward, and moved around by scooting backwards. This started around Xmas time. I took him to a vet on 12/30. Most telling, she flipped his feet upside down and he fell over instead of righting himself. I figured it was probably hopeless, but I treated him for 10 days with Metacam and Trimethoprim/Sulfamethoxazole just in case and a super shock to me, he got better - I would estimate 9...0% better! He was crowing again, maybe mating with his girls. Well a few days ago, the symptoms came back fast. I will post short video clips of the weirdness in the comments. He is about 22 months old, I have had him a year, none of my other chickens exhibit these symptoms, his weight is fine, so eating and drinking ok. He is alert and can see and hear, I've brought no new chickens into the environment in the last year other than ones I've hatched, he was vaccinated for Mareks as a chick. I am grateful to have his son so that my chocolate silkie project can continue, but am very sad personally. He is beautiful. Any help or just simply honest advice would be appreciated. I nearly put him down yesterday, but decided to give the meds one more chance. Anything at all, I'm willing to listen. Very sad.