I have a plucker, a re-homed older male eclectus. He has finally stopped plucking I believe. It took a change of diet and finding what relaxed him. When I brought him home I placed him in a larger cage which he always climbed out of first chance he got, to go into his much smaller travel cage. I got him a smaller parrot cage and he now stays put. I had him in front of a window in the beginning and he always got out and moved to his travel cage. So I moved him to a corner of the room, he stays put now. He feels much safer and is much calmer in the corner. I believe once you find out that the plucking is not physical or a diet problem, then it must be mental so that is what I worked on; finding what makes Sully happy. I spray him a lot with Aloe Vera Juice (thanks Dave) and see that his atmosphere is calm and his diet is more appropriate for a parrot and so after 1 1/2 years Sully has stopped plucking, I am pleased!!!