When mine started i thought an animal was getting in the coop at night and roughing them up. It seems like they went into the molt just after a possum attack that killed 2 of my chicks and a roo. Ive had chickens for many years but have never seen all of my chicks go into molt at one time, and how long does it usually take, should i be giving them anything special to eat or drink? other than regular water and layer mash. I almost have enough feathers all around to make a pillow.