I noticed yesterday when I offered vegetables to the chickens that one of the chickens just stood on the roost and would not come down. I went to the chicken and offered it to her. She just stood stiff and would not move her head at all. Then when the chickens were going to roost in the coop at night , she was still outside on a roost, standing. My husband went in and picked her up to move her inside and she was stiff, he turned her on her side and she just layed in his hand. He put her on the roost in the coop and she stayed there. This morning she came back out, but most of the day she has still been very quiet and has stood on the outside roost. I tried to feed her yogurt mixed with some flax meal and she would not take any of it. I did see her, down off the roost for a bit, but I can't tell if she is eating and I haven't seen her poo. She has most of the day just stayed on the outside roost and a lot of the time she is standing still. She is a Brown Leghorn, about 26 weeks. She has layed some eggs but not regularly. I am new to raising chickens, I don't want any of the other chickens to get something. Should I move her out of the coop? Any suggestions of what could be going on, please!!!