Northern Saw-whet Owl (Aegolius acadicus)

Other Names (World)
Northern Saw-whet Owl, Saw-whet Owl, Queen Charlotte Owl (brooksi)

Family
Strigidae (Typical Owls)

Size
20 cm

First Described (Guide)
(Gmelin, 1788)

Habitat
Subtropical and tropical montane moist forest, swamp forest, boreal forest. From 1,900 - 3,100 m.

Range (Guide)

Canada (P), Costa Rica (B), Guatemala (B), Mexico, USA (B).

Vagrant to Bermuda, St Pierre and Miquelon (NB) (P).

Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.

Population
Estimated population is 2,000,000 (2011).

Status LC
For more information see BirdLife International Species Factsheet.

Voice
Xeno-Canto Sound Files (more (322)...)

Northern Saw-whet Owl (Aegolius acadicus) [XC615073]
by Ray Cooke from Webster Road, Farmington, Franklin County, Maine, United States (alarm call, call)

Northern Saw-whet Owl (Aegolius acadicus) [XC520059]
by Thomas Paine from Oroville, Okanogan County, Washington, United States (call)

Subspecies
Aegolius acadicus (Sibley and Monroe 1990, 1993) has been split into Northern Saw-whet Owl (Aegolius acadicus) and Unspotted Saw-whet Owl (Aegolius ridgwayi) following AOU (1998). This treatment has always been followed by BirdLife.

Possibly forms superspecies with Unspotted Saw-whet Owl (Aegolius ridgwayi), although ranges appear to overlap in southern Mexico (with apparent hybridization). Perhaps conspecific with Unspotted Saw-whet Owl (Aegolius ridgwayi).

Proposed subspecies brodkorbi from Sierra Madre in Oaxaca based on a single juvenile specimen.

The following 2 subspecies are recognised:

acadicus (Gmelin, 1788) - From southern Alaska south to southern USA, east to south-eastern Canada and northern Florida. Also highlands of Mexico from north-eastern Sonora to central Michoacán, eastern in central highlands to Puebla, Hidalgo and central Oaxaca, with isolated population in south-eastern Coahuila, south-western Nuevo León and northern San Luis Potosí.
brooksi (Fleming, JH, 1916) - Queen Charlotte Is (British Columbia).

References
See References.

Files:

JPG files for Northern Saw-whet Owl (Aegolius acadicus) - 10 files

More Information

BirdLife International

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BirdLife International Species Factsheet.

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