My 5-6 year old OEG bantam rooster just finished a molt and his new feathers are coming in well, though his tail feathers aren't here yet. He usually is very energetic, but the past week and a half he has been under the weather, subdued, low energy, and his comb seems to be dark and purple. His wattles are red, but they seem a bit shrunken and dry, not their usual full shape. His eyes are clear, his comb is warm (not cold to touch), no problems or noises with breathing, skin normal, no swellings or lesions. In short, except for the dark comb and lack of pep, there aren't any visible symptoms. He is eating and drinking. though not with his usual gusto. His droppings do not seem abnormal, though they're smallish because he doesn't eat a lot. I've observed that he readily eats "special treat" foods -- hard boiled egg and fish food flakes (the flakes made for goldfish), and will pick a little at his regular pellets and scratch seed. The dark comb makes me think of septicemia, but the lack of symptoms otherwise is puzzling. Thoughts?