Boreal Owl
Boreal owls are small owls found throughout the Holarctic region. They are members of the typical owls group, as opposed to the barn owl grouping.
Scientific Classification
Kingdom | Animalia |
Phylum | Chordata |
Class | Aves |
Order | Strigiformes |
Family | Strigidae |
Genus | Aegolius |
Scientific Name | Aegolius funereus |
Quick Information
Also known as | Tengmalm’s owl, Richardson’s owl |
Description | Size: 8.7-10.6 in (22-27 cm) in length Weight: 3.3-7.6 oz (93-215 g) Wingspan: 20-24 in (50-62 cm) Color: Brown on the top with white spots on the shoulders; the underparts are whitish with streaks of rust; the eyes are yellow and the beak is light yellow; juveniles are chocolate brown Sexual Dimorphism: Females much larger than males |
Distribution & Subspecies |
|
Habitat | Lives in the taiga forests |
Sounds & Calls | A short ‘kew’ or ‘kip’ |
Lifespan | 7-8 years |
Diet | Voles, mice, squirrels, pocket gophers, shrews, small birds, and insects |
Adaptations |
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Predators | Pine martens, larger owls and other raptors |
IUCN Conservation Status | Least Concern |
Behavior
- These birds are not social and spend their time by themselves even during the breeding season.
- They are nocturnal, being active during the night.
- They are not known to migrate, but sometimes do move south during fall.
- Boreal owls make their nests in tree cavities made by woodpeckers.
- When hunting, they perch on low branches locating prey; once located, they glide down to the ground and catch the prey with their talons.
Mating & Reproduction
Males start to sing to attract females around late winter and the beginning of spring. Courtship involves the male bringing food for the female. Clutches consist of 3-6 eggs which are incubated for 26-32 days.
Life-cycle
Hatchlings are blind and covered in down. The female stays with them while the male brings them food. The juveniles become able to leave the nest around a month after hatching. They reach sexual maturity after about 9 months of age.
Interesting Facts
- These are one of the most elusive and secretive birds.
- The genus name, Aegolius, means bad omen while the binomial name funereus means ‘funeral’.
References:
- https://wildernessclassroom.org/wilderness-library/boreal-owl/
- https://www.peregrinefund.org/explore-raptors-species/Boreal_Owl
- http://www.biokids.umich.edu/critters/Aegolius_funereus/
- https://www.dnr.state.mn.us/birds/borealowl.html
- https://www.allaboutbirds.org/guide/Boreal_Owl/overview
- https://www.audubon.org/field-guide/bird/boreal-owl
- https://www.borealbirds.org/bird/boreal-owl
- https://www.denali.org/denalis-natural-history/boreal-owls/
Published on June 18th 2018 by Sudipto Chakrabarti under Coniferous Forest Animals.
Article was last reviewed on 5th December 2022.