It is funny to watch my ducks eat. They take a mouthful of food and then go over to the water and take a big drink. Guess they don't have salivary glands like us humans do. I had my ducks in the pen with my chickens until they got a bit bigger. The problem was that they dirtied the water fairly quickly. Not so bad that it had feed in the water except in this heat. The 100*+ temps cause the water to ferment pretty quickly. I now have them running loose in my fenced back yard (6' privacy fence) and they have their own feed and a big 12' x 1.5' pool full of water to do their own thing. They are loving it.