It may face threats from climate change, as changing temperatures affect both their habitat and their prey.
Located The Snowy Owl is circumpolar and can be found in Alaska, Canada, Greenland, Russia, and many areas north of the Arctic Circle. It has a wide distribution area and will at times migrate to areas south of the Arctic Circle. Snowy Owls are known by other names including the Great White Owl, Ghost Owl, Ermine Owl and Arctic Owl. Snowy Owls, like other owls, will often eat their prey whole, and will then regurgitate the indigestible parts in the form of a pellet. Snowy owls are the largest bird species in the arctic. They are 63 to 73 cm long and have an average wingspan of 170 cm. Females are larger and heavier than the males. Females weigh 1550 to 1600 grams, and males weigh 1450 to 1500 grams. Snowy owls are white with brown spots and bars. In winter, snowy owls can be found in Canada and the northern United States, Iceland, the British Isles, northern Europe, central Russia, northern China and Sakhalin. Though they are usually found in the arctic, every few years, snowy owls spend the winter much farther south that Snowy owls swallow their prey, such as lemmings, whole! In North America, snowy owls are found during the breeding season from the western Aleutians in Alaska to northeastern Manitoba (Churchill), northern Quebec and northern Labrador in Canada.  The SNOWY OWL lives on the Arctic tundra in Alaska, Canada, northern Europe, Russia, Greenland. It is able to live there year round. This owl is covered with thick feathers from head to toe to protect it from the severe winter weather. If there is not enough prey the snowy owl flies south. It is a winter visitor in southern parts of Canada and northern United States. Then the owl returns to the Arctic in the spring. The snowy owl (Bubo scandiacus) is a large, white owl of the typical owl family. Snowy owls are native to Arctic regions in North America and Eurasia. Younger snowy owls start with darker plumage, which turns lighter as they get older. Males are almost all white, while females have more flecks of gray plumage.  Time will tell if climate change is playing a role in the recent snowy owl boom in North America. The Arctic is a big place, and it is clear that conditions for lemmings in some parts of the Arctic remain prime or are getting better, making good times for snowy owls and bird watchers alike.  Unlike most owls, which are nocturnal, snowy owls are diurnal—they hunt and are active both day and night. Size relative to a 6-ft (2-m) man: The ghostlike snowy owl has unmistakable white plumage that echoes its Arctic origins. These large owls breed on the Arctic tundra, where females lay a clutch of 3 to 11 eggs. Clutch size depends upon the availability of food, and in particularly lean times a usually monogamous pair of owls may not breed at all. Snowy owls originate in the Arctic and most spend their lives there. However, sometimes they may migrate down to the great lakes region and mid-western states in the winter. This is occurring more frequently in recent years due to climate change and habitat loss. As their name suggests, snowy owls have beautiful white plumage. Male snowy owls are almost completely white while females are darker with spots. In the Arctic, their white coloring helps disguise them from predators and enables them to sneak up on their prey. Threats. Snowy owls may face threats from climate change, as changing temperatures affect both their habitat and their prey. Other threats to snowy owls include collisions with automobiles, utility lines and other objects and gunshot wound
http://www.tundraanimals.net/tundraanimals/snowyowl.html http://www.biokids.umich.edu/critters/Nyctea_scandiaca/ http://www.defenders.org/snowy-owl/basic-facts http://www.aitc.sk.ca/saskschools/arctic/snowyowl.html https://en.wikipedia.org/wiki/Snowy_Owl http://blog.nature.org/science/2014/01/21/the-amazing-lemming-the-rodent-behind-the-snowy-owl-invasion/ http://animals.nationalgeographic.com/animals/birds/snowy-owl/ http://refugeassociation.org/wildlife/birds/snowy-owl/ http://www.defenders.org/snowy-owl/threats
what is a snowy owl's climate