We are pretty new to the hen raising game. We have a 1 1/2 old light brahman hen that has been very productive and beautiful. Last week she started to loose feathers. Today she has no tail, very thin wings, and neck. We also have 3 orpintons in the same coop. Do brahmans moult or do we have a serious infection to deal with? Thanks for the support, looks like a great web site and forum.