Hello all, I am new to BYC and excited to learn from everyone! I tend chickens at our neighborhood Grange. Our rooster has a bright red butt and the tops of his legs where the feathers start are also scarlet red. I will attach a photo. Someone suggested mites but we dusted with D-Earth twice and it did not help. He doesn't seem to be in pain or irritated by it but it looks horrible. Help!