Submitted by ProfessorMandark t3_10qc9gh in Maine
I've never had chickens in severely low temps, and I want to ensure they stay safe. They are semi-protected from wind, and they don't have any open areas in the coop they stay in at night, but if it's that cold, I can't imagine they'll want to leave the coop, and I don't know if it's ok to leave them in there for so long.
Guygan t1_j6p5s3r wrote
Most folks put in a heat lamp and button up the coop on really cold nights.