It is going to be -30 over night here This is my first winter with ducks..They are in a large wire cage in the garage with straw bedding no water or feed as theay ate and drank all today out side I have 6 bales of straw around the cage and a blanket to cover the top and one that covers half the front of the cage and a 250 watt brood lamp on the other half..Will they be ok? How do ducks survive when they dont have help? Its -30 here? Thanks