NT
Southern Bristle-tyrant Pogonotriccus eximius



Taxonomy

Taxonomic note
Pogonotriccus eximius (del Hoyo and Collar 2016) was previously listed as Phylloscartes eximius.

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: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.
SACC. 2006. A classification of the bird species of South America. Available at: https://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 Near Threatened
Species attributes

Migratory status not a migrant Forest dependency high
Land-mass type continent
Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 1,170,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing poor suspected 1998-2008
Rate of change over the past 10 years/3 generations (longer of the two periods) 20-29% - - -
Rate of change over the future 10 years/3 generations (longer of the two periods) 20-29% - - -
Rate of change over the past & future 10 years/3 generations (longer of the two periods) 20-29% - - -
Generation length 3.6 years - - -
Percentage of mature individuals in largest subpopulation 100% - - -

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

Trend justification: A moderately rapid and on-going decline is suspected owing to habitat loss.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Argentina extant native yes
Brazil extant native yes
Paraguay extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Argentina Alta cuenca del arroyo Alegría
Argentina Campo Viera y Campo Ramón
Argentina Cerro Mártires y Barra Santa María
Argentina Corredor Urugua-í Foerster
Argentina Parque Nacional Iguazú y alrededores
Argentina Parque Provincial Cruce Caballero
Argentina Parque Provincial Guardaparque Horacio Foerster
Argentina Parque Provincial Piñalito y alrededores
Argentina Parque Provincial Urugua-í
Argentina Parque Provincial Uruzú y Reserva Forestal San Jorge
Argentina Reserva de la Biósfera Yabotí
Argentina Reserva Privada Yaguaroundí
Argentina San Antonio
Argentina San Pedro
Argentina Sierra Morena
Brazil Parque Nacional do Iguaçu
Paraguay Bosque Mbaracayú
Paraguay Estancia Itabó
Paraguay Estancia Muxfeldt
Paraguay Ka'aguy Rory
Paraguay Limoy
Paraguay Morombi
Paraguay Parque Nacional Caazapá
Paraguay Parque Nacional San Rafael
Paraguay Paso Curuzú
Paraguay Reserva Itabó - Itaipú
Paraguay Serranías de San Joaquín
Paraguay Tapyta
Paraguay Ybyturuzú
Paraguay Ypeti

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Moist Montane suitable resident
Forest Temperate suitable resident
Altitude 0 - 600 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Agro-industry farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Wood & pulp plantations - Agro-industry plantations Timing Scope Severity Impact
Past, Likely to Return Minority (<50%) Slow, Significant Declines Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion
Energy production & mining Mining & quarrying Timing Scope Severity Impact
Past, Likely to Return Majority (50-90%) Unknown Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion
Residential & commercial development Commercial & industrial areas Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Residential & commercial development Housing & urban areas Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Transportation & service corridors Roads & railroads Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2024) Species factsheet: Southern Bristle-tyrant Pogonotriccus eximius. Downloaded from https://datazone.birdlife.org/species/factsheet/southern-bristle-tyrant-pogonotriccus-eximius on 23/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 23/11/2024.