Excelllent advice already given, and you're doing super. Two things: unless he picks at the wound, or it gets dirty from shavings or other sources, leave it uncovered--or at least loosely covered. It's best to avoid a warm, moist environment (like a bandage) with a "dirty" (non-surgical) wound. Regarding flies, do you know what fly eggs look like? If not, they look like miniature, tiny grains of rice that somebody arranged in little stuck-together groups, with the "rice" standing on it's pointed end, usually. If you see anything like that, clean it off IMMEDIATELY. Maggots WILL kill healthy tissue with their excrement, and then consume it, burrowing deeper and deeper. Once that wound is REALLY dried and scabbed, he should be safe, but use that bluekote before letting any other poultry near him.