Where do black-capped chickadees go to survive Alaska’s frigid winter nights?

I wonder if they use cavities hollowed out by [woodpeckers](https://georgiawildlife.com/out-my-backdoor-woodpecker-cavities-help-other-birds-survive-winter?fbclid=IwAR1NuPaPpqNyan-exy8p-oigpDdoQAKxxNc4qArddzQA0hgqQLBQJJd12WE)