I put my 8 4-week old chicks outside by my established chicken coop just yesterday (2 hens and Mussolini, my Silkie roo). The older chickens had seen the chicks often, as I allowed the older chickens to visit the chicks through their brooder cage when they lived in my garage. But last night was the first time the chicks were right by the side of the chicken coop. And this morning Mussolini didn't crow. Could this be due to the newness of the chicks in his territory, or is it more likely due to illness? He looks and acts okay other than the fact that he is so quiet today. Has anyone else had rooster who was quiet for a day or so?