I have a kit coop that has an attached run. I was planning to keep food and water in the run only. If I plan on locking them inside the coop portion each night, can they go without food/water till I open it back up in the morning? Or do they need food and water in the coop portion too? I'm new to chickens. My girls are 4 weeks old, so not quite ready to go out yet, but I'm just getting prepared. Thx for your help!