We have a Golden Comet hen, about three years old, who is in a constant moult. She has been that way all summer. I also noticed her clucking a couple of weeks ago, the way a hen does when she is going broody. She did not go broody, (and never has) and I haven't noticed the clucking lately. She otherwise seems healthy. Is there a cure for this? I've noticed this before in Golden Comet hens, although not for this long...