I have 3 pekin ducks, one is three months old, the other two are 2 months. When I put them in for the night,(they are residing in the chicken coop, they came before the chickens who are now a month old) Should I put food in with their water or just water at night? I have been putting both. As you can guess in the morning there is food and water everywhere. Just wondering what you all do for your ducks at night. Thanks!