@Ponypoor I am lucky that my husband is retired, so he keeps an eye out for the hens while I am work, but I give them a variety of different foods during winter since they don't get to forage on their own including fermented feed, grass that I grow in buckets inside my house, sardines when they are moulting and scratch, plus certain high value household scraps. No one is laying eggs currently which is a relief since we don't have to worry about eggs freezing.
I have fairy lights in the coop that I turn on in the morning because we only get about five hours of daylight in the dead of winter and I don't feel that is enough time to get sufficient food.
I also have an oil filled radiator that I turn on when it is really cold like this morning when it was -32C. It's still below freezing in the coop, but much nicer.
Since the girls are moulting right now, they spend a lot time working on their feathers and helping their friends with those hard to reach pin feathers.
I give them the ashes from the wood stove to dust bathe in under a covered roof. I have two areas that are covered, plus the area under a smaller raised coop that I set up this summer.
On nice days I still sit out with them. They love it when I bunch up some straw and sit on the ground. They gather around and we have a preening party! Plus they love to eat snow off my boots.
It's not terribly cold every day, so we enjoy the mild days like when it's warmer than -10C.