Several species of birds winter in my garden. They are frost-resistant and have learned to get food when there is a lot of snow and in severe frosts. They are saved from low temperatures by dense layers of fat and fluffy plumage that retains heat. They suffer not so much from frost as from a lack of food to generate heat.
In the garden and adjacent forest, I photographed siskins, redpoll bullfinches, tits, nuthatches, and waxwings. They love sunflower seeds, watermelon and melon seeds and pieces of unsalted lard.
When I put sunflower seeds in the feeder, I try to crush it slightly, then the great tits and little tits eat it well. Watermelon seeds are too hard for great tits in severe frosts. What bird species live in your garden or near you?
My video about the garden bird feeder.