My brooder is set up on our back porch, protected from wind, and I have a red brooder light which gives warmth, but its' still cold at night. It gets down to 9-11ish C. ( don't know what that is in Fahrenheit ) I'm thinking I might need to bring them in at night and put them in the bathtub in a cardboard box. My question is do I need to bring in their waterer and food too? If they were with a mama hen wouldn't they stay under her all night? Normally chickens don't move around in the dark. If I move their brooder light into the bathtub too to increase the temp would that make them more active and therefore need food and water? I can move everything back and forth but if I don't have to it would be easier. I pick them up tomorrow morning so could use advice A.S.A.P.