I went out this morning to the coop and one of the Barnevelders that always runs away from me let me pick her up, no problem. I set her back down thinking nothing about it and another hen started picking at the feathers between her back and tail. I took the 'sick' one out of the run and into the yard, and still nothing. She just stands there. I have brought her into the garage with a heat lamp in the corner of a box. Can't tell if she's eating or drinking yet. It has gotten cold here the past couple days, but she's a chicken. Not sure of the age I think maybe 2 or 3.