Canadian owls are moving into northern Wisconsin in unprecedented numbers.
The Department of Natural Resources says it's been at least 100 years since this last happened.
Four types of northern owls that inhabit the forests of Canada have swooped into the northwoods -- the great gray, boreal, northern hawk and snowy owls.
The D-N-R says the owls are heading south in search of food. The great gray owl started showing up in big numbers in northeastern Minnesota in December and moved into northwestern Wisconsin this month.
The D-N-R's Susan Foote-Martin estimates northwestern Wisconsin has at least 100 gray owls. Birders say the great gray is not easily spooked by humans.
Experts say the great gray owl may fly as far south as the Horicon Marsh in Dodge County.