Seems like ever since we moved our previously free-ranging flock into their brand-new, huge pen in the back, our oldest (and so far ONLY egg-laying) 8-month old BR hen, Frieda, has had a heck of a time adjusting. She layed off and on for another few days, after we moved them, and then stopped alltogether. I first thought that it was the move, along with winter temps here in GA, but now she seems to have developed a sneeze, that occurs every few seconds, and she looks kind of scrawny. She seems to eat, poop and harrass the younger hens just like she always has, but I'm worried about the sneezing, which has lasted for about a week now. Do chickens just get normal colds that go away on their own, or do I need to take some action?