We had the neighbor's dog kill our hen that was lowest on the totem poll while the others ran and escaped. Now the new lowest hen Mrs. B (a dark Cornish) has been plucking out her chest feathers. She has quite the bald spot at this point although it is not red or irritated at all. It has been about 4 days (I think) since the dog incident and I am thinking maybe she is just stressed out by that experience? Also I was gone all weekend and DH did not let them range nearly as much as I do being a SAHM. I'm just trying to figure out if the combination of the stress from the dog attack and being penned up A LOT more than usual might have led to this behavior. I'm concerned because I thought I read somewhere here that once they start plucking their own feathers it is nearly impossible to get them to stop. I know there is the possibility of a protein deficiency but I am working on that and it is only the one hen. This has also started very close to a very stressful/traumatic incident and being cooped up too much. Poor DH feels bad because they only ranged for an hour a day while I was gone, when I am here they range for maybe 9 or 10 hours! Is there any way to get her to stop? What are the dangers associated with this type of behavior? Can a chicken be "traumatized" permanently by something. I figured no because well their chickens but now I am wondering. It is too early for this hen to go broody, she is only 14 weeks or so and isn't even laying yet!