Check out this thread. its pretty hilarious...
https://www.backyardchickens.com/t/580968/official-byc-contest-worst-chicken-molt-pictures-fall-winter-2011
I have Guinea Fowl and the other day I thought a coyote had gotten into the pen AGAIN. There were enough feathers in there for at least...
I am sure others will post more than me..... but from San Diego.... It sounds like molting to me. When they molt they stop laying. If the poo is runny all the time that is something to be concerned about. but if the poo is runny Occasionally that is normal. Chickens do two types of poo...