Over a week I've lost starting with the smallest pullet and going up the chain getting a bigger one each time. One day ill go out and the bird I know is going to die has ratty unkept feathers and will look like there wasting away. Then the next day ill find them dead on the coop floor. Nothing is getting in the coop im sure of and its locked tight. What is killing them? Its got a duck and five hens so far im thinking a disease bit I bleached the coop? Idk what to do.