I may need to brood my new chicks outdoors. I should have my coop done and it is small enough to hold some heat. I've got a heat lamp. The forecast shows that for the next 10 days the lowest low will be 48 and the highs are going to average in the mid 70s. Will it be possible to brood in my coop? I will be brooding only 6 chicks, so I'm worried that might be an issue.