I got a Cackle surprise box last week and have the chicks in my barn in three separate brooders to give them room. Each with their own heat lamp. I am not using a heat bulb but a 60 watt bulb in the lamp. However, my barn is made of metal and its gotten into the upper 80's here during the day. I cant keep the barn door open due to the cows coming in and destroying everything. I do have a metal gate I can put in the doorway which Im considering. I also have all the windows open and a fan going. During the day I turn off the lamps. Can I put them outside in a tractor? It gets to between 50 and 60 degrees at night so Im trying to figure out how to put a heat source out there if they need it. They are not feathered yet as they are only going on two weeks old.