Bad news. We lost them last night. We ran the light all night the night before and everything was fine but last night was colder. The only thing that seemed to go wrong was the cold. They lived 4 days but we were having unusually warm weather those days. i wanted to bring mamma and babies in the house, but I was afraid if I tore apart her nest and set it up differently in a new box in the house she would not have it. They sure were cute little things! I learned for next time.