The technical name for this bird is the “dark-eyed junco,” but we always called them “snowbirds.”
They usually spend most of their time deep in the conifer woods, but when it snows, they come out in the open and are regulars at just about every bird feeder.
I believe this is the same species Anne Murray wrote about:
My grandpa used to poach them as bait for his fox traps, and when he was a boy, they used to catch them in spruce trees at night, kill them and then roast them over an open fire. He claimed the birds tasted very well, but you had to catch a bunch of them to have a decent meal.