Unspotted Saw-whet Owl (Aegolius ridgwayi)

Other Names (World)
Unspotted Saw-whet Owl, Southern Saw-whet Owl

Family
Strigidae (Typical Owls)

Size
18 cm

First Described (Guide)
(Alfaro, 1905)

Habitat
Subtropical and tropical montane moist forest. From 1,600 - 3,300 m.

Range (Guide)

Costa Rica (B), El Salvador (B), Guatemala (B), Mexico (B).

Vagrant to Panama.

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

Population
Estimated population is 20,000 - 49,999 (2010).

Status LC
For more information see BirdLife International Species Factsheet.

Voice
Xeno-Canto Sound Files (more (29)...)

Unspotted Saw-whet Owl (Aegolius ridgwayi) [XC337940]
by Jorge Gabriel Campos from Volcan Irazu National Park, Costa Rica (song)

Unspotted Saw-whet Owl (Aegolius ridgwayi) [XC5105]
by Mike Nelson from Huitepec Ecological Reserve, Chiapas, Mexico (song)

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 Northern Saw-whet Owl (Aegolius acadicus), although ranges appear to overlap in southern Mexico (with apparent hybridization). Perhaps conspecific with Northern Saw-whet Owl (Aegolius acadicus). Validity of subspecies uncertain: suggested that both tacanensis and rostratus perhaps in fact hybrids between this species and Northern Saw-whet Owl (Aegolius acadicus).

The following 3 subspecies are recognised:

tacanensis (Alfaro, 1905) - Southern Mexico (Chiapas).
rostratus (Griscom, 1930) - Guatemala; Honduras and El Salvador (presumed this race).
ridgwayi (Alfaro, 1905) - Costa Rica and western Panama.

References
See References.

Files:

JPG files for Unspotted Saw-whet Owl (Aegolius ridgwayi) - 10 files

More Information

BirdLife International

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BirdLife International Species Factsheet.

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