Chaco owl
Strix chacoensis Cherrie & Reichenberger, 1921
The chaco owl (Strix chacoensis) is a species in the family Strigidae, order Strigiformes. Recorded adults weigh 330 g to 460 g. Its IUCN Red List status is Near Threatened.

Quick facts about the chaco owl
- Weight
- 330 g – 460 gsrc for Weight
- Length
- Not recorded
- Lifespan
- Not recorded
- Diet
- Carnivoresrc for Diet
- Main food
- Not recorded
- Habitat
- forestsrc for Habitat
- Young per litter or clutch
- 2.4src for Young per litter or clutch
- Lifestyle
- Perchingsrc for Lifestyle
- Migration
- Sedentarysrc for Migration
- Conservation status
- Near Threatened (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the chaco owl live?
Not recorded
What is the chaco owl?
The Chaco owl (Strix chacoensis) is an owl found in Argentina, Bolivia, and Paraguay.
From the Wikipedia article “Chaco owl” (en.wikipedia.org/w/index.php?title=Chaco_owl&oldid=1313758265), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the chaco owl endangered?
The chaco owl is listed as Near Threatened on the IUCN Red List: it is close to qualifying as threatened.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Near Threatened species.
How is the chaco owl classified?
- kingdomAnimalia
- phylumChordata
- classAves
- orderStrigiformes
- familyStrigidae
- genusStrix
- SpeciesStrix chacoensis Cherrie & Reichenberger, 1921
Synonyms Ciccaba chacoensis, Strix rufipes chacoensis
Other names and names in other languages (33)
- بومة تشاكوArabic
- gamarús del ChacoCatalan
- puštík argentinskýCzech
- puštík paraguajskýCzech
- ChaconatugleDanish
- ChacokauzGerman
- ChacowaldkauzGerman
- ĉaka strigoEsperanto
- Cárabo chaqueñoSpanish
- Lechuza Bataráz ChaqueñaSpanish
- Lechuza chaqueñaSpanish
- chaco kakkEstonian
- raitapöllöFinnish
- Chouette du chacoFrench
- paragvajska sovaCroatian
- Chaco-bagolyHungarian
- Allocco del chacoItalian
- チャコモリフクロウJapanese
- チャコフクロウJapanese
- Pietų Amerikos pelėdaLithuanian
- ChacobosuilDutch
- chacougleNorwegian
- puszczyk jarzębatyPolish
- coruja-do-chacoPortuguese
- Неясыть ЧакоRussian
- Чакская неясытьRussian
- sova jarabáSlovak
- Čakoanska sovaSerbian
- chacougglaSwedish
- Çako Kırmızı Ayaklı BaykuşuTurkish
- сова болівійськаUkrainian
- 查科林鴞Chinese
- 查科林鸮Chinese
Relatives of the chaco owl
Other species in the same genus Strix.

Tawny owl
Strix aluco

Ural owl
Strix uralensis

Great grey owl
Strix nebulosa

Brown wood owl
Strix leptogrammica

Barred owl
Strix varia

Omani owl
Strix butleri
CompareChaco owl vs Tawny owlChaco owl vs Ural owlChaco owl vs Great grey owlChaco owl vs Brown wood owl
Common questions
Answered only where our data holds the answer.
How big is the chaco owl?
An adult chaco owl weighs 330 g – 460 g, according to values recorded on Wikidata.
Is the chaco owl endangered?
The chaco owl is listed as Near Threatened on the IUCN Red List, meaning it is close to qualifying as threatened.
What kind of animal is the chaco owl?
The chaco owl (Strix chacoensis) belongs to the family Strigidae in the order Strigiformes.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - AVONET: morphological, ecological and geographical data for all birds · CC BY 4.0 · v7
Tobias, J.A. et al. (2022) AVONET: morphological, ecological and geographical data for all birds. Ecology Letters 25: 581–597. https://doi.org/10.1111/ele.13898. Data: https://doi.org/10.6084/m9.figshare.16586228.v7 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Chaco owl (Strix chacoensis). Retrieved from https://creaturedata.com/animals/chaco-owl
“Chaco owl (Strix chacoensis).” CreatureData, 2026, https://creaturedata.com/animals/chaco-owl.
@misc{chaco_owl_2026,
title = {Chaco owl (Strix chacoensis)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/chaco-owl},
note = {Data as of 2026-11-11}
}