I have a bantam EE who is sitting on 6 eggs. Their hatch date is Friday. She is obviously small being a bantam, and the eggs are from full sized birds (ayam cemani/cochin). Will I need to put a heat lamp in the brooder being that she's so small? If I only get a few hatching I'm sure she'll be fine, but she's been a great mama and all 6 are looking good. I can't imagine her little body keeping all 6 warm. I'm in north GA and it's still in the 60's at night. Thanks in advance!