Hello all! I have a 22 week old RIR pullet who has been on and off again plucking and eating the feathers of her flock mates (same age). First she was targeting my Silver Laced Polish (maybe a month and a half ago) to the point they avoided both my RIRs like the plague, then she stopped picking on them. A little bit later, she targeted one of my Easter Eggers for about the same amount of time (1-2 weeks), then stopped. Now she’s back to going after my Polish again - just pulling out lower back feathers and eating them. It doesn’t look like she’s done too much damage on anyone but the poor victims seem terrorized and it’s got to hurt them . The RIR has been laying since the first of the month, so I’m wondering if I need to be offering them more protein. They get All Flock (which I think is 18% protein) and I don’t think they’re stressed and definitely not crowded (they have a coop and run that is roughly 300 sq ft combined shared between 13 chickens). I also have a dish of oyster shells available to them. It’s possible they are a bit bored (I eventually want to install a chicken swing and jungle gym for them, but at the moment they have their coop perches and an old small tree skeleton to perch on), but it’s just the one pullet who seems picky. Could it be they just need a little more protein (especially those who have started laying)? Thanks for any feedback!