Barred Owl
(Strix varia) Y |


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RANGE: Resident from southern and eastern British Columbia,
northern Washington, and extreme northwestern Montana east to
central Saskatchewan, and from southern Manitoba and central
Ontario to New Brunswick and Nova Scotia, south to central and
southern Texas, the Gulf Coast, southern Florida, and northern
Mexico. Northernmost populations are partially migratory.
STATUS: Common to uncommon. Unknown which of the three North
American subspecies occurs in .
HABITAT: Prefers dense woodlands bordering lakes, streams,
swamps, marshes, or low meadows. Favors oak woodlands or mixed
forests free of a dense understory but also inhabits deciduous,
coniferous, and mixed forests. May also inhabit isolated
woodlots with numerous mature trees.
SPECIAL HABITAT REQUIREMENTS: Cool, damp lowlands with large
cavity trees 20 inches dbh or greater for nesting. Strongest
nesting habitat association in Douglas Fir/White Oak
forest.
NEST: Typically nests in a large cavity in a dead tree; may nest
in abandoned hawk, crow, or squirrel nests if cavities are
scarce. Generally chooses tall, old trees with cavities at least
25 feet above the ground, and in the forest interior. May use
the same nest site for many years.
FOOD: Hunts for prey over open fields, clearings, and wetlands
near woodlands. Feeds on a wide variety of animals, especially
mice and other small mammals; also eats birds (from warblers to
grouse and other species of owls), fishes, frogs, salamanders,
lizards, snakes, crayfish, scorpions, snails, spiders, and large
insects.
REFERENCES: Adamus et al. 2001, DeGraff et al. 1980, Dunstan and
Sample 1972, Heintzelman 1979, Johnsgard 1979, Karalus and
Eckert 1974, Marshall et al. 2003, Miller 1999, Nicholls and
Warner 1972, Shunk 2004. |