
Unspotted Saw-whet Owl
Aegolius ridgwayi (Alfaro, 1905)
18–22 cmLength80 gWeight
The unspotted saw-whet owl (Aegolius ridgwayi) is a small "typical owl" in subfamily Surniinae.
Busiest months: November · Most records: Guatemala, Costa Rica
Where and when it's recorded
Busiest months: November · Most records: Guatemala, Costa Rica
Unspotted Saw-whet Owl has been recorded at 7 of the 8,276 birding hotspots we track, in 2 countries and regions.
Records by month Northern Hemisphere
Where it's recorded most
- Godinez – Aldea Los RoblesGuatemala26 records
- Parque Regional Municipal Zunil – Fuentes GeorginasGuatemala19 records
- Paraiso Quetzal Lodge - Km 70Costa Rica18 records
More places
- Savegre Valley – Miriam's RestaurantCosta Rica14 records
- San Gerardo de DotaCosta Rica9 records
- Finca Caleras ChichavacGuatemala7 records
- Savegre HotelCosta Rica3 records
Countries and regions with the most records
eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.
About
The unspotted saw-whet owl (Aegolius ridgwayi) is a small "typical owl" in subfamily Surniinae. It is native to mountainous areas of Central America.
Excerpt from Wikipedia, CC BY-SA 4.0 · authors · Read more on Wikipedia
Questions
How big is the Unspotted Saw-whet Owl?
The Unspotted Saw-whet Owl is about 18–22 cm long and weighs around 80 g.
Where does the Unspotted Saw-whet Owl live?
Its breeding range: Middle America: southern Mexico to western Panama. It is most often recorded in Guatemala and Costa Rica.
When is the best time to see the Unspotted Saw-whet Owl?
At the hotspots we track, it is recorded most in November (Northern Hemisphere).
Is the Unspotted Saw-whet Owl endangered?
The IUCN Red List classifies the Unspotted Saw-whet Owl as Least Concern.
What does the Unspotted Saw-whet Owl eat?
Main food: Vertebrate prey.
What family is the Unspotted Saw-whet Owl in?
It belongs to the family Owls (Strigidae), order Strigiformes.
At a glance
- Length
- 18–22 cm
- Weight
- 80 g
- Habitat
- Forest
- Diet
- Vertebrate prey
- Lifestyle
- Perches in trees
- Migration
- Partial migrant
- Conservation
- Least Concern
More measurements
- Wing
- 138 mm
- Tail
- 67 mm
- Bill
- 18 mm
- Tarsus
- 23 mm
Averages from the AVONET dataset; length from field guides where available.
Range
Middle America: southern Mexico to western Panama
Breeding range, IOC World Bird List 15.2
Classification
- Order
- Strigiformes
- Family
- Owls Strigidae
- Genus
- Aegolius
Other birds in the genus Aegolius

Download illustration
Free to use with credit: “Illustration: Bird Album (birdalbum.com)”. Drawn by AI from a reference photo by Roberto Vargas. ↗
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In other languages
- EnglishUnspotted Saw-whet Owl
- 简体中文无斑棕榈鬼鸮
- 繁體中文無斑棕櫚鬼鴞
- 日本語メキシコキンメフクロウ
- DeutschRidgwaykauz
- FrançaisNyctale immaculée
- EspañolMochuelo moreno
- Portuguêsmocho-imaculado
- ItalianoCivetta capogrosso del Centroamerica
- NederlandsRidgways Zaaguil
- РусскийСветлобрюхий сыч
- Svenskabrun pärluggla
- DanskHvidbrynet Perleugle
- Polskiwłochatka białolica
Boreal OwlAegolius funereus
Northern Saw-whet OwlAegolius acadicus
Buff-fronted OwlAegolius harrisii
Papuan Hawk-OwlUroglaux dimorpha
Rufous OwlNinox rufa
Powerful OwlNinox strenua
Barking OwlNinox connivens
Sumba BoobookNinox rudolfi
Australian BoobookNinox boobook
Rote BoobookNinox rotiensis