my son wants me to take some chicks to school for show and tell. Do you think they will be ok in a shoebox with no heater for about a half hour, or should I place somethign in there to keep them warm. If I should put something in there, what should I do? I was thinking a Hot water bottle, but that could roll around and hurt them. The temp today is 45' and windy an rainy! YUCK!