About 1/2 hr. ago I noticed one of hens not feels well. I open the door to the coop to let them out and as always they all ran out. Except her. She did slowly work her way out and then stood there as if to fall asleep. I went to pick her up and she moved away from me but not as quick as normal. I did catch her and tried to give water and she didn't want it. I offered her a handful of scratch and didn't want that either. She stood next to me and allowed me to pet her and it seems as though she wanted to fall asleep. No discharge anywhere, and no wounds, eyes are clear. Poop is clear and some yellow and white...and runny like mucus. Any ideas? I have no pesticides she can get into and was fine last night and this morning when I let them out into the run. Any help would be great. All my other hens are very normal..it's just her.