FunClucks
Crowing
So, I had a very similar problem. When I introduced my 6-8 wk pullets into their spacious outdoor covered run/coop, one of them decided to pluck all the feathers off the back of another pullet. Like, 100+ feathers in less than an hour. We tried to isolate in the garage, and reintroduce a few days later, but she kept doing it. She was too young/small for pinless peepers (that I knew of at the time, maybe they make smaller ones now?), and I didn't want other birds to learn the same bad habit so I rehomed her. In her new home, she is free range most if not all the time, and other birds can run away a lot better. Also she was on the bottom, not the top of the pecking order, which should help her learn some manners.
I fed them 20% purina All Flock (plenty of protein), and had no problems in the brooder, just once I introduced them outside.
I fed them 20% purina All Flock (plenty of protein), and had no problems in the brooder, just once I introduced them outside.