My 2 year old Muscovy drake Bob is really sick today he isn't eating and has diarrhea which is clear and green and sometimes a light yellowish green color his vent was covered in poop when i found him so i washed it off. He hasn't moved much all day and he is standing in my hallway looking really uncomfortable. My poor boy couldn't even come out of his coop to see me he usually runs out as soon as i walk outside. He is the first duck i raised from a duckling he is my baby and i love him. Does anyone know what this could be and how i can treat it?