The Hens name was cookie because she was sweet and tough one. We are talking full grown hen my best layer of four hens and a momma of three month old cockerel at the time. Sept/2013. It took her weeks to go down early symptoms were lob sidedness, 1-2 weeks in progression still completely still and away from the rest of the birds. Unable to peck for food till more time pass and laying on ground feet completely stiff at this point neck started to curl back and twist. After she couldn't eat she began losing weight and water i had school and could be there for her to give her water and food more reason to hate myself and school. My other birds where not affected at all even the 3 month old seem unaffected but he was such a klutz. They have been living with each other for over 6 months my initial 4 birds not until almost a year this happened to her and only her. So symptoms weight loss ,feet and wing paralysis, and neck twisting stargazing position mentioned. Smelly feces I smell a lot of chicken poop that emitted odor was very distinct. Loss of motor skills and my best guess is Mareks or New Castle only one that cause paralysis and neck twisting. I dont know were to have taken the body for an autopsy we buried her instead of disturbing the body. In thee more months my cockerel is going to be rooster had to send to a farm or the city would have saved them from me and killed them which is obviously a better choice another reason I hate where I live screw this place I am going where me and my birds are accepted.