Verified media
Image Gallery
Loading images…
Snapshot
Primary Traits
137.8 g
1,580 m - 3,050 m
49
—
Record section
Identity and Taxonomy
Scientific identity, taxonomic placement, and source lineage.
Scientific name
Aegolius funereus
English name
Boreal Owl
Order
Strigiformes
Family
Strigidae
Genus
Aegolius
Species
funereus
Data source
HBW5, BOTW, D07,D23
Record section
Conservation and Range
Threat status and geographic distribution signals.
Conservation status
Least Concern
Range restricted
No
Island endemic
No
Biogeographic realm
Cosmopolitan
Latitudinal zone
Temperate
Record section
Measurements
Mass and elevation values from the stored record.
Minimum female mass
100 g
Maximum female mass
215 g
Minimum male mass
90 g
Maximum male mass
146 g
Minimum unsexed mass
No data
Maximum unsexed mass
No data
Average mass
137.8 g
Minimum elevation
No data
Typical lower elevation
1,580 m
Typical upper elevation
3,050 m
Maximum elevation
M
Elevation range
1,470 m
Typical elevation
2,315 m
Record section
Ecology
Habitat, diet, and specialization profile.
Primary habitat
Forest
Habitat breadth
3
Primary diet
Vertebrate
Diet breadth
1
Diet specialization index
1.52
Record section
Behavior and Reproduction
Breeding, nesting, incubation, and social traits.
Social behavior
No data
Mating system
Monogamous, Polygynous
Cooperative breeding
Solitary breeder
Nest type
Cavity (tree)
Nest substrate
Tree
Minimum broods per year
1
Maximum broods per year
No data
Minimum clutch size
3
Maximum clutch size
6
Incubating sex
Female
Minimum incubation period
29 d
Maximum incubation period
29 d
Minimum fledging period
28 d
Maximum fledging period
36 d
Nest parasitism
No data
Average clutch size
4.5
Average fledging period
32 d
Record section
Mobility and Flight
Flight ability and movement pattern.
Flight status
Flies
Mobility patterns
Partial Migrant, Irregular/Nomadic, Dispersive, Sedentary