I raise chickens at a Montessori school where I teach. I walked into the coop this morning with two students to find a dead chicken. It was a teaching moment...blah blah blah. They are not checked on over the weekend so they are given plenty of water and food to last till Monday, But one of my girls is dead!! What happened??? She had feathers missing around her tail and that was pecked clean to the bone. chickens did that I know, they also ate out her bottom area. YUCK!!!! But chickens are chickens. I noticed another chicken has feather missing around her tail and the skin is black and dried blood is there. I'm affraid of the other chickens pecking her to death as well. Any one have any guessed or knowhow as to what is wrong with her? Could it be mites or lice. They have not been dewormed yet either. could it be molting? They were chicks in April so that makes them six months old.