LC
Ochre-browed Thistletail Asthenes coryi



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: 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
2024 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 low
Land-mass type Average mass 17 g
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 9,100 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend stable - suspected -
Generation length 2.81 years - - -

Population justification: The global population size has not been quantified, but this species is described as 'fairly common' (Stotz et al. 1996). This population is suspected to be stable in the absence of evidence for any declines or substantial threats.

Trend justification: This population is suspected to be stable in the absence of evidence for any declines or substantial threats.


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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Venezuela Dinira National Park and surrounding areas (Refugio de Fauna Silvestre y Reserva de Pesca Parque Nacional Dinira IBA)
Venezuela Parque Nacional El Tamá
Venezuela Parque Nacional Guaramacal
Venezuela Parque Nacional Páramos Batallón y La Negra and surrounding areas
Venezuela Parque Nacional Sierra La Culata
Venezuela Parque Nacional Sierra Nevada

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane suitable resident
Grassland Subtropical/Tropical High Altitude major resident
Shrubland Subtropical/Tropical High Altitude major resident
Altitude 2340 - 4190 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation

Recommended citation
BirdLife International (2024) Species factsheet: Ochre-browed Thistletail Asthenes coryi. Downloaded from https://datazone.birdlife.org/species/factsheet/ochre-browed-thistletail-asthenes-coryi on 23/12/2024.
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 23/12/2024.