(c) 2005 Owling.com. For rights to use a photo, please contact the photographer.
is a collection of Great Gray Owl photos from the 2004/2005 Northern
Owl invasion. Very large numbers of Great Gray Owls and Northern Hawk
Owls had appeared (mainly) in Northern Minnosota. These invasions are
normal as the vole population (their main food source) declines about
every 3 to 5 years. The 2004/2005 invasion has been one of the most
extream because of a cold wet summer in Canada. This further reduced
the rodent population and drove 1000's of owls south in search for food.