Thanks for the update, Pompous, I am glad Kenworth is doing better, the added out of cage time helps him I'm sure. They need to be included in their flock's activities and that may solve the plucking problem. Good job, sounds like eating and playing is going well too, so keep up the good work and keep us informed, we care about him and you.
BTW, just ignore the profanity, in time he will use it less and less, especially if he no longer hears those words.