My hen isn't moving she's just about 6 months she won't move at all. About 30 minutes ago I checked on her and she can't pick up her head anymore I moved her away from the rest of the flock in case what's wrong with her is contagious. When I checked on her I found that her poo is a green with white stringy stuff. Any Ideas what's wrong with her? We have 12 other chickens in the flock and none of the others show any signs of sickness.