Poor babies!
Everything is just twice as hard to do outside. Rubber cracks, metal bonds, electrical cords crack, etc.,
When it comes to cold, generally I feel that it doesn't feel much colder after -25C. The rest is just numbers.
However, things mechanical beg to differ, and even the Gray Jays (Whisky Jacks) and other small birds don't visit the bird feeder.
Beats me how the little guys even survive, if they do.
"A sparrow, falling frozen from it's perch, will die never having known self pity." A lesson for all of us.