Young birds can handle cold, it is the sudden change that bothers them just like us. I definitely would protect the front from wind. Extra straw or shavings for bedding.
Trying to keep waterers thawed without electricity is a lost cause. Just haul a small bucket of water to them several times a day. Use shallow pans, dog bowls, etc that are easy to knock the ice out of and refill them often. It’s a pain for the whole winter, but the easiest solution for a week or less.
Make sure YOU are ready for the cold. Find all your cold weather clothing, hand warmers, extra food, house is ready to lose power best you can. Store up some water in case you lose water (had a friend lose city water because the water main froze).
My current forecast is 3 feet of snow. We are NOT equipped to deal with that, plus then the cold snap will mean it won’t melt in three days like normal