LC
Great Xenops Megaxenops parnaguae



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/Near Threatened
1996 Vulnerable
1994 Vulnerable
1988 Threatened
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Land-mass type - continent
Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 848,000 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 Stable 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) 3.8 - - -

Population justification: The global population size has not been quantified, but the species is probably fairly common in parts of its range. The species is fairly common in Serra da Capivara National Park, Piauí (Olmos 1993), and Chapada do Araripe National Forest, Ceará, and common at Palmas de Monte Alto, Bahia (J. M. C. da Silva in litt. 1993, 1995). It was common at Coribe, Bahia, in 1987, but habitat loss probably extirpated it from this site by 1993 (da Silva and Oren 1997).

Trend justification: Despite the threats from habitat loss and degradation the overall population and distribution seem quite large and recent records have hugely extended its known range in Bahia and into Minas Gerais and Goiás (J. M. C. da Silva in litt. 1993, 1995, G. M. Kirwan in litt. 1995, J. Wall in litt. 1995, M. Marini per T. A. de Melo Júnior in litt. 1999), and the species is tentatively suspected to be stable.


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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Brazil Chapada do Araripe
Brazil Mocambinho
Brazil Parque Nacional da Chapada Diamantina
Brazil Parque Nacional da Serra da Capivara
Brazil Parque Nacional da Serra das Confusões
Brazil Parque Nacional do Catimbau
Brazil Raso da Catarina
Brazil Serra de Ibiapaba
Brazil Serra Negra (Floresta)
Brazil Vale do Peruaçu

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Savanna Dry major resident
Altitude 200 - 1100 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
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Annual & perennial non-timber crops - Small-holder farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Small-holder grazing, ranching or farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown
Stresses
Ecosystem degradation

Recommended citation
BirdLife International (2019) Species factsheet: Megaxenops parnaguae. Downloaded from http://www.birdlife.org on 20/05/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 20/05/2019.