Thanks and she is about 5 months old and has always been with the others. Her head and neck she still has full normal function it’s just her legs. As far as being vaccinated no she was not but would t the other chickens be acting this way alsoHow old is she? Has she always been with the others? Was she vaccinated for Mareks disease? Is she holding her neck normally? Mareks and head injuries can be more common in silkies. I would separate her but keep her with the flock inside a dog crate with her own food and water. A chicken sling might be helpful for periods throughout the day.