NT
Bearded Tachuri Polystictus pectoralis



Taxonomy

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: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.

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

Red List history
Year Category Criteria
2016 Near Threatened A2c+3c+4c
2012 Near Threatened A2c+3c+4c
2008 Near Threatened A2c; A3c; A4c
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Threatened
Species attributes

Migratory status full migrant Forest dependency Does not normally occur in forest
Land mass type Land-mass type - continent
Average mass 6.199999809 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 10,700,000 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 100 - - -
Generation length (yrs) 3.6 - - -

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

Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Argentina N Extant Yes
Bolivia N Extant Yes
Brazil N Extant Yes
Colombia N Extant Yes
French Guiana N Extant Yes
Guyana N Extant Yes
Paraguay N Extant Yes
Suriname N Extant Yes
Uruguay N Extant Yes
Venezuela N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Argentina Bajos Submeridionales
Argentina Bañado de Añatuya
Argentina Bañado La Estrella Este
Argentina Bañado La Estrella Oeste
Argentina Bañados de Figueroa
Argentina Bañados del Río Saladillo
Argentina Campo San Juan
Argentina Ceibas
Argentina Concepción-Chavarría
Argentina Cuenca del río Aguapey
Argentina Cuenca del Río Salado
Argentina El Cachapé
Argentina Estancia La Leonor
Argentina Estancia Mora Cué y alrededores
Argentina Estancia Puerto Valle
Argentina Estancia San Juan Poriahú
Argentina Estero Tapenagá
Argentina Islas de Victoria
Argentina Laguna de Pradere
Argentina Lagunas Encadenadas del Oeste de la Provincia de Buenos Aires
Argentina Lagunas San Miguel y El Sauce
Argentina Lomada de San Alonso
Argentina Nacientes de los riachos Monte Lindo y Tatú Piré
Argentina Nandubaysal-El Potrero
Argentina Parque Nacional Mburucuyá
Argentina Parque Nacional Pre-Delta
Argentina Pastizales de Ibicuy
Argentina Perdices
Argentina Región Estancia Oscuro
Argentina Reserva de Uso Múltiple Bañados del Río Dulce y Laguna Mar Chiquita
Argentina Reserva Ecológica Costanera Sur
Argentina Reserva El Bagual
Argentina Reserva Natural de Uso Múltiple Isla Martín García
Argentina Reserva Natural Otamendi, Reserva Provincial Río Lujan y alrededores
Argentina Reserva Natural Punta Lara
Argentina Reserva Provincial de Usos Múltiples Federico Wildermuth
Argentina Riacho Saladillo
Argentina Rincón del Socorro-Iberá
Argentina Sierras Australes de Buenos Aires
Argentina Valle del río Paraguay-Paraná
Argentina Valle Fluvial del Río Paraguay
Argentina Villa Iris, Chasicó, Napostá
Bolivia Área Natural de Manejo Integrado San Matías
Brazil Campo do Alto Marmelos
Brazil Cânion do Guartelá
Brazil Itirapina
Brazil Parque Nacional das Emas
Brazil Rios Negro e Aquidauana
Brazil Savanas do Amapá
Brazil Savanas do Rio Cotingo
Colombia Cuenca del Río Toche
Colombia Reserva Forestal Yotoco
French Guiana Savanes Trou Poissons, Brigandin, Corrossony
Guyana Ireng River
Paraguay Estancias Golondrina - El Trébol
Paraguay Parque Nacional Defensores del Chaco
Paraguay Parque Nacional San Rafael
Paraguay Parque Nacional Tinfunqué - Estero Patiño
Suriname Sipaliwini Nature Reserve
Venezuela Monumento Natural Tepui Roraima
Venezuela Monumento Natural Tepui Yavi
Venezuela Parque Nacional Canaima

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Grassland Subtropical/Tropical Dry major breeding
Grassland Subtropical/Tropical Dry major non-breeding
Grassland Subtropical/Tropical Seasonally Wet/Flooded major breeding
Grassland Subtropical/Tropical Seasonally Wet/Flooded major non-breeding
Savanna Dry major breeding
Savanna Dry major non-breeding
Altitude 0 - 1300 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Wood & pulp plantations Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Natural system modifications Fire & fire suppression Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines
Stresses
Ecosystem degradation

Recommended citation
BirdLife International (2017) Species factsheet: Polystictus pectoralis. Downloaded from http://www.birdlife.org on 23/10/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/10/2017.