I had a similar problem with my hen 'Padame' a few months back. Im afraid i dont have advice on what you should do, but i can tell you for a fact that hair growth lotion from Boots does not work! Since following the instructions on the packet, and bathing her in it, Padame went TOTALLY bald and now hates daylight. I also thought I heard her make a very strange sound once, that sounded almost like laughing.