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Yamada, K.; Nishida-Umehara, C.; Matsuda, Y. (2004). "A new family of satellite DNA sequences as a major component of centromeric heterochromatin in owls (Strigiformes)". Chromosoma. 112 (6): 277–287. doi: 10.1007/s00412-003-0267-z. PMID 14997323. S2CID 7848355.Kerlinger, Paul; Lein, M. Ross (1986). "Differences in Winter Range among Age-Sex Classes of Snowy Owls Nyctea scandiaca in North America". Ornis Scandinavica. 17 (1): 1–17. doi: 10.2307/3676745. JSTOR 3676745.

Pyle, P. (1998). "Flight-feather molt patterns and age in North American owls" (PDF). The Auk. 115 (2): 553. doi: 10.2307/4089230. JSTOR 4089230.

Hannon, Susan J.; Barry, Thomas W. (1986). "Demography, Breeding Biology and Predation of Willow Ptarmigan at Anderson River Delta, Northwest Territories". Arctic. 39 (4): 300–303. doi: 10.14430/arctic2091. JSTOR 40511025. They live in herds and often hurdle close together to generate heat and stay warm. Additionally, they have long, curved horns for protection against predators. 6. Snow Leopard Snow Leopard blende12 from Pixabay Korpimaki, Erkki (1986). "Reversed Size Dimorphism in Birds of Prey, Especially in Tengmalm's Owl Aegolius funereus: A Test of the "Starvation Hypothesis" ". Ornis Scandinavica. 17 (4): 326–332. doi: 10.2307/3676820. JSTOR 3676820. It has an excellent sense of smell ( they can smell a dead seal from 20 miles away ), and they can bound across the snow at high speed. Polar bears are also great swimmers and they have been seen swimming up to 50 miles from the nearest land.

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Snowy owl facts, pictures and in-depth information. Read on to discover more about this distinctive Arctic predator… All About Snowy Owls: Meet A Distinctive Arctic Predator The weather in New Jersey stays fairly consistent, but a few substantial storms through the years are enough to keep any locals on their toes. Snow is a common occurrence as the weather becomes colder in December. With scattered snowfall before the coldest months, only a few Novembers have ever seen a single snowflake in New Jersey. The most snow in New Jersey history in November happened in 1989. Does New Jersey Normally Get Snow in November?