Hello Everyone, I am new to this so I hope this in the right place. I live in south cental WI,and have a mixed flock of RIR,productoin whites and a few mix breeds that I don't know what they are. Any way starting this summer one would get dopey and go off feed and then she would get a blueish purple comb and die. They are all different ages. I feed corn, wheat,and layer ration in between. Sawdust and straw for bedding. Their poop all looks fine as far as I can tell. They free range when possible. Haven't had any new birds enter the flock. Does any one have any one have any ideas as to what is going on? I have search through many forums and none of them seem to match the symtoms. Thank to you all who shared I have enjoied reading them and learning. Thank you for any suggestions on this dilemma I have. Please let me know if I am doing this right.