Tawny-browed Owl Pulsatrix koeniswaldiana


Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: #

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2018 Least Concern
2016 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Near Threatened
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Average mass -

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,040,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Decreasing inferred -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 5.7 - - -

Population justification: The global population size has not been quantified, but this species is described as 'uncommon' (Stotz et al. 1996). However, in Brazil the species is common in Sao Paulo (F. Olmos in litt. 2003), it is also common in Argentina (M. Pearman in litt. 2003), and has been recorded from seven Misiones departments (Chebez 1996) and may occur in others.

Trend justification:

The species is tentatively assessed as being in decline due to habitat loss per Tracewski et al. (2016).

Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Argentina N Extant Yes
Brazil N Extant Yes
Paraguay N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Paraguay Parque Nacional San Rafael
Argentina Parque Provincial Urugua-í
Argentina Parque Provincial Uruzú y Reserva Forestal San Jorge
Argentina San Pedro
Argentina Reserva Privada Yaguaroundí
Argentina Parque Provincial Salto Encantado del Valle del Cuñá-Pirú y alrededores
Argentina Cerro Mártires y Barra Santa María
Paraguay Morombi
Argentina Parque Nacional Iguazú y alrededores
Argentina Parque Provincial Piñalito y alrededores
Argentina Reserva de la Biósfera Yabotí
Argentina Parque Provincial Cruce Caballero
Paraguay Estancia Itabó
Brazil Parque Estadual da Serra do Brigadeiro
Brazil Sooretama / Linhares
Brazil Santa Teresa
Brazil Serras das Lontras e do Javi
Brazil Fazenda Pindobas IV e Arredores
Brazil Encostas da Região de Domingos Martins
Brazil Complexo Pedra Azul / Forno Grande
Brazil Parque Estadual do Desengano e Entorno
Brazil Serra Bonita
Brazil Serra dos Órgãos
Brazil Serra do Tinguá
Brazil Maciços da Tijuca e Pedra Branca
Brazil Campos Gerais do Paraná
Brazil Serra do Marumbi
Brazil Parque Nacional do Iguaçu
Brazil Parque Estadual da Serra do Mar (entre Caraguatatuba e Picinguaba)
Brazil Serra da Cantareira
Brazil Região de Blumenau
Brazil Serra do Tabuleiro State Park
Brazil Ilhabela State Park (Parque Estadual de Ilhabela IBA)
Brazil Guaraqueçaba / Jacupiranga / Cananéia
Brazil Maciço Florestal de Paranapiacaba
Brazil Parque Nacional de Itatiaia
Brazil Estação Ecológica de Juréia-Itatins
Brazil Parque Estadual do Turvo
Brazil Serra da Bocaina / Paraty / Angra dos Reis
Brazil Região dos Aparados da Serra
Brazil Boa Nova / Serra da Ouricana
Brazil Alto Cariri
Brazil Fazenda Santana
Brazil Reserva Biológica da Mata Escura
Brazil Bandeira / Macarani

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable resident
Forest Subtropical/Tropical Moist Lowland suitable resident
Forest Subtropical/Tropical Moist Montane suitable resident
Altitude 0 - 1500 m Occasional altitudinal limits  

Purpose Primary form used Life stage used Source Scale Level Timing
Pets/display animals, horticulture - - International Non-trivial Recent

Recommended citation
BirdLife International (2023) Species factsheet: Pulsatrix koeniswaldiana. Downloaded from on 24/03/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from on 24/03/2023.