We live in upstate New York, and the chicks are getting overcrowded in the indoor brooder. It's time to get them into a larger setup outside. The difficulty is that next week it'll still get below freezing at night...in April Plan to partially cover the outdoor brooder with blankets and add extra heat lamps. However, they are going from 68 degrees on average to possibly 48 degrees (Fahrenheit) at night on a covered deck. Does anyone know if this will be too much of a shock for their little systems?