LC
Large-billed Antwren Herpsilochmus longirostris



Taxonomy

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. 2005 and updates. 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
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 Lower Risk/Least Concern
Species attributes

Migratory status not a migrant Forest dependency High
Land mass type Average mass 12.800000190734863 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 3,020,000 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 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 - - -
Largest subpopulations - - -
Generation length (yrs) 4.8 - - -

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

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
Bolivia N Extant Yes
Brazil N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Bolivia Noel Kempff Mercado
Brazil Alto Rio Juruena
Brazil Cerrados ao Sul de Brasília
Brazil Estação Ecológica de Águas Emendadas
Brazil Interflúvio dos Rios das Mortes e Araguaia
Brazil Jalapão
Brazil Matas Ciliares do Rio do Coco e Afluentes
Brazil Parque Nacional da Chapada dos Guimarães e Adjacências
Brazil Parque Nacional da Chapada dos Veadeiros e Adjacências
Brazil Parque Nacional da Serra da Bodoquena e Entorno
Brazil Parque Nacional das Emas
Brazil Reserva Particular do Patrimônio Natural SESC Pantanal e Entorno
Brazil Rios Negro e Aquidauana
Brazil Serra da Canastra
Brazil Vale do Rio Palmeiras

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry major resident
Forest Subtropical/Tropical Moist Lowland major resident
Altitude 150 - 1200 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2019) Species factsheet: Herpsilochmus longirostris. Downloaded from http://www.birdlife.org on 23/05/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/05/2019.