I have two RB2s...the female does not pluck and the male does. He did not start plucking till he went through puberty and became hormonal at about 4-5 for an RB2. I try to keep him occupied with lots of toys and attention, but he still does it. The vet has ruled out medical reasons. I even tried Pluck No More, which I thought was working, but really did not. So I live with a male RB2 that plucks his chest and under his wings...he does not look too bad like others I have seen. Our female does not pluck...go figure. I tell my birds they are both pretty birds, nonetheless.