I don't have a bird with feather plucking issues currently, but I worked with a Catalina Macaw years ago that had come from a home where he had been neglected before I got to work with him. So, by the time I got to him his feather plucking was a bad habit, and there were a LOT of feathers that actually had damaged follicles because of his years of plucking. His entire chest as well as the body part under his wings was plucked, although from the back you couldn't tell he was plucked, he looked horrible from the front. I've also learned that some males will actually start plucking their chest feathers as a "brooding" behavior to add feathers to help build a nest during breeding season, and sometimes if they do this too often it can turn into a habit as well, although given his history I'm sure his problem was the cause of neglect. Anyway, I wanted to give my two cents to those of you who have birds where the plucking has become a habit, since I was able to find something that helped break his habit and allowed him to grow feathers back in (unfortunately it started again after I left). If you take a cactus perch (the ones with the holes in it) and use elmer's glue (non-toxic) to glue feathers into it (you can either use feathers from the bottom of the birds cage that you've managed to collect, or get some very simple ones from Michael's and use food-coloring to make them the colors that your bird is). The idea is that your bird starts to pluck the feathers off of that, instead of the feathers off of itself. Another reason that some birds in captivity can go to plucking is because they don't have the "preening" behavior to do with their flock members that they would be doing in the wild...so, if you have a bird by itself in a cage I would make sure it gets some "preening time" with you at the very least weekly, if not more. While plucking the feathers on the perch should allow for the old feathers to grow back in, you do still need to address whatever issue is causing the bird to pluck in the first place. That's just an idea to help get out of the "habit" of plucking that some birds have gotten stuck in. Hope it helps someone!