Yesterday I went up to the coop to put all the chickens up. I shook their treats and 6 of the 7 chickens came. I got worried, thinking there might have been an animal attack or Daisy (the chicken who hadn't come) got tangled in something because the chickens ALWAYS come when their treats are involved. It turned out she was standing in the bush, and she wouldn't move. I went up to her, called her, and shook the treats but she wouldn't come, so I had to walk into the bush and carry her out. I set her down outside and nothing looked wrong, but she wouldn't walk. I picked her up and set her on her perch in the coop, and then she threw up. It just looked like water coming up, I also think there was a brownish larva-worm like thing she may have eaten earlier. The next day she came down from her perch but wouldn't walk much. I don't think she's been laying either but it's hard to tell with seven other chickens. I'm about to go check on her now and will keep this thread updated. Does anyone know what could be wrong?