Thanks for the great info, red horse! My hubby and I jumped in the car and drove over to Tractor Supply and purchased a bottle of Rooster Booster Peck No More, and now Poli is sporting a streak of it on the back of his head! The hens tried to peck at it, and some were defiant with the pecking but after two or three tries the taste must have gotten to them because they kept scratching their beaks on the ground and shaking their heads...and they walked off! Hopefully, this will keep working with them and Poli has a chance to heal! Thanks again!