I'm so bummed, my 6 month old blue mille cockeral died yesterday. He had some respiratory issues I was treating with antibiotics, but he didn't make it. My little goldneck pullet is coughing too, and I'm treating her as well, I hope I caught it early enough with her. I should have started treating the boy earlier, but he seemed to be doing alright and I am always hesitant to use antibiotics unless totally necessary. Lesson learned I guess. Last year I had this roll through too, but the antibiotics cleared everyone up and they all made it. It seems like the D'Uccles are affected more for some reason, no one else gets sick, (cochins, silkies and a polish). Any advice?