Irruptive medium- to long-distance migrant. Snowy Owl migrations are extremely variable. Some North American Snowy Owls winter in southeastern Canada, the upper Great Lakes states, and New England just about every year. Winter numbers of Snowy Owls in the U.S. peak periodically, which may be attributed to lemming cycles farther north. During irruptive years, Snowy Owls can flush south throughout the lower 48 states, as far as south as Texas and Florida in extreme years.