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They fly close to the ground, usually less than 6 metres up, except when flying to a nest. This Owl is the provincial bird emblem of Manitoba, Canada. The species name nebulosa is derived from the Latin Nebulosus, meaning misty or foggy. The Great Grey Owl is large grey owl with dense, fluffy plumage, long wings and tail, and a large head with no ear-tufts. Timber harvest is a threat when it removes the large live and dead trees required for nesting and the dense cover required for protecting new fledglings.
Great gray owls are uncommon in Klamath Network parks, occurring rarely in Crater Lake National Park, Lava Beds National Monument, and Redwood National and State Parks. Great gray owls primarily vocalize during the breeding season. Equipped with powerful hearing, thanks to offset ear openings and a large facial disk, the owls hunt from low perches on the edge of openings.
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The male selectspossible nest sites and attracts its mate with calls. Pocket gophers are themost important food in California. Whenhunting, a Great Grey Owl will use a perch to "sit and wait" or it may huntthrough the forest a metre or so above the ground. When threatened, a Great Grey Owl will snap its beak, spread its wings, and growl. Females give an excited "ooo-uh" when the male arrives with food. Males and females also give a single hoot when near thenest.
If you are lucky enough to live within the range of the Great Gray Owl, you can build a nest structure to attract a breeding pair. In these areas slowly walk the perimeter of a meadow or other opening looking for dark figures in trees. Join your local birding group email listserv and watch rare bird alters to know when one has been sighted near you. The Great Gray Owl is an elusive bird that is not easy to find, despite its size.
Most foraging is donein open areas such as swamps, bogs, and forest clearings where there are scattered treesand shrubs that can be used as perches. In the Sierra NevadaMountains they breed in mixed conifer and red fir forests. Naturalenemies that prey on juveniles are Great Horned Owls, marten, and wolverines. Young leave the nestat 3 to 4 weeks and can climb well.
Blending perfectly with the gray-brown bark of its conifer perch, the great gray owl becomes one with the forest. The Eurasian subspecies of the grey owl is very commonly kept in European zoos. As of 2016, there are four great grey owls captive in Oregon and California. As an exception, the female is aggressive in protecting eggs and owlets. They are less likely to attack each other or potential threats than are other large unlimluck predatory birds. Testing of owls in the Yosemite area since 2005 has found evidence of the virus in that population.
Although human-made structures (made specifically for use by this species) have been utilized by these owls, the species is far more common in areas protected from logging. In mated pairs, the male is the primary hunter who provides food for the entire family while the female guards and broods the eggs, nestlings, and flightless fledglings. These birds wait, listen, and watch for prey, then swoop down; they also may fly low through open areas in search of prey. Unlike, for example, osprey or white storks, the great grey owl does not predictably re-use nest sites over consecutive years. The erection of nest platforms for great grey owls was pioneered by Robert Nero in central Canada in the 1970s. In southwestern and northeastern Oregon, the great grey owl has been using man-made platforms for nest sites since the 1980s.
