In Virginia, you don’t have really cold weather, not as far as chickens are concerned.
Chickens generally don’t like new strange things. That includes snow if they haven’t seen it before. Often mine will stay in the coop for a couple of days before one gets brave enough to step on it, but once one does, they are often out in it, especially if the grass and weeds are sticking out enough so they can forage. I’ve had some wade through 9” of snow to go check out my compost heap to see if there were any goodies there.
I took this photo last spring. It started to snow while they were out roaming. I guess since it fell while they were out there, they just stayed there, not like waking up to the ground covered by snow.
I took this shot a few years back when it was 4 degrees above zero Fahrenheit. I always leave the pop door open, regardless of the weather and give them the option to do what they want to do. As long as a cold wind is not blowing, they choose to go outside in the cold.
I’ve seen chickens sleep in trees when it was below zero Fahrenheit. They were in a protected valley in a thicket and could move around to get out of a direct wind. It’s not like they were on a dead tree limb overlooking a bluff defiantly squawking into the teeth of a blizzard. You’d see something like that in a Disney cartoon, not in real life. Those chickens did not have any frostbite problems, feet or combs.
When chickens squat down and fluff up their feathers a bit for better insulation from the cold, their feet pretty well disappear whether they are on something round or flat as long as it’s not real skinny. And they normally sleep with their heads under a wing to protect their comb and wattles when it is really cold.
Don’t get me wrong. Chickens can get frostbite, normally on the comb and wattles. That’s usually associated with the coop being so airtight that the moisture from their breathing and poop can’t get out so they have extra moisture in the air. People further north than you or me have reported solving those frostbite problems by providing more ventilation above the chickens heads while they are sleeping. That ventilation needs to be high enough over their heads so a direct breeze doesn’t hit them. Think wind chill.