I am an advocate of spraying your birds who are pluckers. Everyone knows my re-homed ekkie, Sully, who was such a bad plucker his name use to be Butch at the pet store. His feathers where mutilated and his back and stomach were bare. I soak him by spraying him with Aloe Vera Juice (love you Dr. Flock for this great advice) and water and alternate with Feather-In (Thanks again Dr. Flock). Sully is now letting his feathers grow in and I am totally delighted with the great progress he is making. I am hoping that by the anniversary of his 2 year time of living with me he will be fully feathered again, at least as much as possible. So I totally believe that spraying has helped him. There is also a cockatoo, Tango, that I have met that is also being sprayed daily by his owner and his feathers are growing back in beautifully!!