The boreal forest is the world’s largest land biome and is comprised mainly of coniferous tree species such as pine, spruce and fir with some broadleaf species such as poplar and birch. Boreal forests grow in high-latitude environments where freezing temperatures occur for 6 to 8 months of the year. This past February, I visited just such a boreal forest in Minnesota called Sax-Zim Bog. One of the denizens of Sax-Zim Bog is the aptly named Boreal Owl. While we were there, the temperatures dropped to a bone-chilling negative 31 degrees in the daytime. The owls, including this Boreal Owl, were often perched in trees, feathers fluffed against the cold, dozing in the daylight and occasionally opening their eyes to peek at the groups of photographers watching them and to watch beneath them where uncrusted snow under the trees facilitated access to prey.