I've mentioned this before, but whenever you have extremes in weather it is so important to remember the local wildlife. If you have a yard, keep the brush around and the bushes and trees as full as you can. These sheltered areas give birds and squirrels and chipmunks (and more) a place to hide and try and keep warm.
Even more important is to provide some fresh water and even some seed or crumbs if you can. We keep a low pan of water out for the local birds and are rewarded with visits of all kinds of cardinals, blue jays, crows, finches and more.
Last night we received our first snow - a sudden storm that dumped a lot of snow in a brief time. We saw birds picking up corn and chicken feed in the coop and made sure to spread some seed and fill up all the waters with fresh, non-icy water this morning.
Almost immediately we have seen flocks of birds come by to drink and eat.
We use the land, we can give back in this small measure to help ensure they survive.