I have 12 chicks born on 10/17. They are in my garage now with no heat lamp and the temp in the garage is about 20-30 degrees warmer than the temps outside. I need to get them outside in the coop, but the temps for the next week will be lower 30's for a high and lows in the teens. Will they be alright or will they freeze to death? They are completely feathered out.