gpeters3
Chirping
It gets down to -35 here in Colorado and I've never used heat lamps. I've heard to many horror stories about coops burning down. Just ask TJ Jordan.
I only use them for the chicks. All breeders i know use lamps for them. I had a good brood mom for my bantams and never used lamps but waited til spring to start hatching eggs. It can get to -10 here and only had a few lose a toe or two, i presume due to freezing and that was with pipe perches. Now i use flat 2x4's.