Its Freaking cold.
A good homesteader needs to make sure that their coop is winterized for their flock.
The cold could lead to an increase in vulnerability and even death. (in some cases).
Many people are unsure how to winterize their coop. Here are some directions on using the deep little method during the winter time to ensure a toasty coop.
Coop Winterization- Deep litter method
To get you in the mood sit in front of your favorite Thomas Kinkade painting.. or in my case.. a Klimpt and watch the following video. I guarantee you it will at least put a smile on your face/beak.