So my Cochin, that use to be bully, has recently started losing her neck feathers. I can still see the quills sticking up, but the feathers are off. Some on her tail feathers too. I checked her for mites and didn't see any. She's only 9 months old, so too young to molt. The other hens are fine and have not lost any of their feathers. I am assuming she is being picked on, however I have not seen any outward signs of aggression from the other hens. The coop where they sleep at night have feathers underneath the perch, so maybe she is being picked on at night? There are feathers in the run as well, but as I said, I don't see any outward signs of aggression. She does seem more timid lately around the others and she quit laying eggs about 3 weeks ago. She is also the hen that laid extremely soft shelled eggs, if any shell at all, initially. That was remedied by adding extra protein, which I admit, tapered off once all 4 hens were laying. I have read where protein deficiency can cause feather loss as well. Does anyone have any experience or advice? It is hard to isolate as we live in a small area with not much room. Add to that, we don't even know who could be doing the pecking short of setting up a baby monitor, which would involve running electricity! So.......not sure where to go with this. Could it be boredom! I'm sooooooo out of sorts here!