By 7 to 8 weeks old I don't provide water at night. I also never lock my older Ducks in at night. They either go into the house or sleep in the corner bed of straw. My runs also have roofs.My husband put a roof on yesterday. We are going to get some straw today to make a place for them to bed down in. Unfortunately, they don’t always do what we expect of them. I may end up having to spread hay all over to guarantee they will lay on it to stay warm. We are already getting freeze advisories here, but they are doing a good job at staying warm. At what point do you take water away from them at night when it is cold? It will soon be getting darker at 5, so I don’t want them to go 14 hours without water.