A Snowy Owl screams on the coldest morning of the year @ -33C plus wind chill. I have to confess: I was considering breaking out the butane camp stove and making a hot cup of coffee after realizing there would be no glorious light with lake effect clouds interfering with my plans. I am glad that I stayed out and got this territorial scream as another owl flew into its winter territory. I watched it fly off and chase a Tundra Swan until they disappeared beyond the horizon and then broke out the hot coffee - smile.