Cinereous Black-tyrant Knipolegus striaticeps


Taxonomic note

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2006. A classification of the bird species of South America. Available at: #
SACC. 2006. 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
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 Lower Risk/Least Concern
Species attributes

Migratory status full migrant Forest dependency Low
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,070,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Decreasing suspected -
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 - - -
Largest subpopulations - - -
Generation length (yrs) 3.6 - - -

Population justification: The global population size has not been quantified, but this species is described as 'fairly common' (Stotz et al. (1996).

Trend justification: This population is suspected to be in decline owing to ongoing habitat destruction (del Hoyo et al. 2004).

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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Argentina Acambuco
Argentina Bajos Submeridionales
Argentina Bañado La Estrella Este
Argentina Bañado La Estrella Oeste
Argentina Bañados de Figueroa
Argentina Bañados del Quirquincho
Argentina Bosques de Chacho
Argentina Bosques de Olta
Argentina Chaco de Tartagal
Argentina Chaguaral
Argentina Chancaní y Sierras de Pocho
Argentina El Cachapé
Argentina El Cantor
Argentina El Fuerte y Santa Clara
Argentina Estancia Guaycolec
Argentina Estancia La Alegría
Argentina Estancia La Leonor
Argentina Fortín Sargento Primero Leyes
Argentina Itiyuro-Tuyunti
Argentina La Fidelidad
Argentina La Porcelana
Argentina Lomas de Olmedo
Argentina Lotes 32 y 33, Maíz Gordo
Argentina Misión Taacaglé
Argentina Nacientes de los riachos Monte Lindo y Tatú Piré
Argentina Parque Nacional Calilegua
Argentina Parque Nacional Chaco
Argentina Parque Nacional Copo
Argentina Parque Nacional El Rey
Argentina Parque Nacional Río Pilcomayo
Argentina Parque Provincial Fuerte Esperanza
Argentina Parque Provincial La Florida
Argentina Pilagás III
Argentina Quebrada de las Conchas
Argentina Reserva de Uso Múltiple Bañados del Río Dulce y Laguna Mar Chiquita
Argentina Reserva El Bagual
Argentina Reserva Natural Formosa
Argentina Reserva Natural Las Lancitas
Argentina Reserva Natural Loro Hablador
Argentina Reserva Provincial Santa Ana
Argentina Riacho He He
Argentina Río Bermejito
Argentina Río Seco
Argentina Salinas de Ambargasta
Argentina Salinas Grandes
Argentina Salta Forestal
Argentina Sierra de Medina
Argentina Sierra Rosario de la Frontera
Argentina Sierras de Carahuasi
Argentina Sierras de Guasayán
Argentina Sierras de Puesto Viejo
Argentina Trancas
Argentina Valle del río Paraguay-Paraná
Argentina Valle Fluvial del Río Paraguay
Argentina Yuto y Vinalito
Bolivia Área Natural de Manejo Integrado San Matías
Bolivia KAA-IYA del Gran Chaco
Bolivia Otuquis Integrated Management Natural Area
Bolivia Palmar de las Islas
Bolivia Serranía de Aguarague
Paraguay Estancia Gran Siete
Paraguay Fortín Toledo
Paraguay Lagunas Saladas - Riacho Yacaré
Paraguay Parque Nacional Defensores del Chaco
Paraguay Parque Nacional Médanos del Chaco
Paraguay Parque Nacional Teniente Enciso
Paraguay Parque Nacional Tinfunqué - Estero Patiño
Paraguay Pirizal
Paraguay Pozo Hondo
Paraguay Río Negro - Bajo Chaco

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry suitable non-breeding
Forest Subtropical/Tropical Dry suitable breeding
Shrubland Subtropical/Tropical Dry major breeding
Shrubland Subtropical/Tropical Dry major non-breeding
Altitude 0 - 1900 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2019) Species factsheet: Knipolegus striaticeps. Downloaded from on 24/05/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from on 24/05/2019.