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photo by Frank & Kate Nicoletti |
Boreal Owl
Named for the habitat it
prefers---the boreal forests of Canada and the extreme northern
United States.
Other
names: Arctic saw-whet owl, Richardson's owl, sparrow
owl, Tengmalm's owl (in Europe). Eskimos called it "the blind one"
because it allowed people to walk right up and touch it during
daylight.
Hunting
habits: Eats mostly mice and insects, along with a few
small birds. Normally hunts only at night unless facing starvation.
Migrating
habits: An irruptive migrant---the numbers fluctuate a
great deal from year to year. Periodic crashes in food supply lead
to late fall and winter invasions. Individuals become more visible
because hunger forces them to hunt in the daytime.
Nesting
habits: Nests in a tree cavity, especially an abandoned
pileated woodpecker hole, or in a wood duck house. Normally lays 4-6
pure white eggs. Female incubates the eggs for 27-28 days, and the
young first fly 28-33 days after hatching.
Length:
21-31 cm
Weight:
males weigh about 100-150 grams, females about 125-175 grams
Life
expectancy: One banded Boreal Owl from Germany lived 15
years, 11 months.
Click here to see raptor statistics at Hawk Ridge |