About every 5-6 years the food sources (mainly voles) in the far north
become low. During the winter months of these years the Snowy Owls move further south and in much greater numbers. These times are known as "invasion years" and high numbers of Snowy Owls are seen across the northern US and southern Canada. The winter of 2011-2012 was one of these times. This spectacular owl was one of 30 individuals being seen in Boundary Bay just north of the US border in British Columbia, Canada.
here to return to the Snowy Owl page.