1) What type of bird , age and weight (does the chicken seem or feel lighter or thinner than the others.): Silkie, about 6 months. She is less fluffy than her sisters, maybe slightly thinner. 2) What is the behavior, exactly? I have noticed her walking in tight circles and then flapping for a second like she's being attacked by bees or something, then going back to walking in circles. She isn't holding her head at an angle, was not hurt that we know of (we've only had her for about two months, but she has only been with her two silkie sisters, no other chickens) 3) How long has the bird been exhibiting symptoms? I have seen her walking in circles for a week or two, but thought it may be a nervous behavior. It could have been longer, I have been having severe morning sickness and am not spending much time with the silkies, just attending to their basic needs. 4) Are other birds exhibiting the same symptoms? No 5) Is there any bleeding, injury, broken bones or other sign of trauma? No 6) What happened, if anything that you know of, that may have caused the situation? Nothing that I am aware of. 7) What has the bird been eating and drinking, if at all? I treated them with Corid last week as a precaution (based on some runny poop) but now back on regular water, layer pellets, some scratch. 8) How does the poop look? Normal? Bloody? Runny? etc. Normal 9) What has been the treatment you have administered so far? Nothing 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 am wondering what this may be. Or course I'm afraid of having Mareks in the flock. 11) If you have a picture of the wound or condition, please post it. It may help. I will try and get a video tomorrow. 12) Describe the housing/bedding in use They have a small coop with an enclosed run under the house. The run is on the ground (dirt/rock) and the coop has a slide out tray that I just rinse off daily. Sometimes every other day if I've been really sick. ETA: None of them are laying yet. She is normal most of the time, just occasionally (but with some frequency) does the circle thing.