I have 7 ducks that I pen up at night, but in the morning I let them out and they free range all day, till about 6 when they wonder back to their house for the evening. I have had them about about 2 months. This has been how I have been doing it. But I am wondering if they need food/water in there during the night. It makes a mess and attracts all kinds of bugs. They have full access to our little bayou/pond with all the food and water they could ever want during the day. As you can see in the pic, the water is VERY low, as we haven't had much rain lately. But they play in it all day. Thank you.