EDIT: Weather forecast just said wind chill factors could drop to below minus 50 in higher elevations. It will be cold enough for me here, in my little mountain valley.
I hope everyone who is facing these prospects are able to take care of their birds. Mine are out, enjoying the relative warmth but I won't even be opening doors tomorrow or Tuesday. I bought several heads of cabbage that I hang in the houses to keep them busy while in 'lock-down'.
Ouch. That is COLD. Good luck!