PaulaMc
Chirping
Yes -16C. mm-hmm! And they are outside and busy.
I would say (others please weigh in) at least double the bedding, leave pop door open and vent upper area as much as possible. Frostbite occurs with high humidity and temps around 32F.
Great advice thanks.
Have 6 hens in a 3x 6 coop. Loads of room. Ventilation quite good I believe. Can't leave pop door open as not attached to a run so need to protect them from foxes. However, during the day I open the side doors to air it and put DE on walls now and again to dry. Also, have a small bag of salt high up to extract moisture. Also put Vaseline on their combs every few days.