LC
Cordilleran Flycatcher Empidonax occidentalis



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.

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

Red List history
Year Category Criteria
2019 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 full migrant Forest dependency High
Land mass type Average mass 12 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 4,970,000 medium
Extent of Occurrence non-breeding (km2) 968,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 2900000 poor estimated 2016
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) 3.7 - - -

Population justification: Partners in Flight estimate the global population to number 2.9 million mature individuals (A. Panjabi in litt. 2016).

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
Canada N Extant Yes
Mexico N Extant Yes Yes Yes
USA N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Mexico Acahuizotla - Agua del Obispo
Mexico Cebadillas
Mexico Coalcomán-Pómaro
Mexico El Carricito
Mexico Guacamayita
Mexico La Malinche
Mexico Las Bufas
Mexico Maderas Chihuahua
Mexico Mesa de Guacamayas
Mexico Monte Escobedo
Mexico Nevado de Colima
Mexico Omiltemi
Mexico Tlaxiaco
Mexico Lago de Pátzcuaro
Mexico Piélagos
Mexico Tancítaro
Mexico Tacámbaro
Mexico Sur del Valle de México
Mexico Río Presidio-Pueblo Nuevo
Mexico San Antonio Peña Nevada
Mexico Sierra Norte
Mexico Sierra de Valparaiso
Mexico Sierra de Miahuatlán
Mexico Sierra de Taxco-Nevado de Toluca
Mexico Sierra de Manantlán
Mexico Sierra Chincua
Mexico Sierra de Arteaga
Mexico Sierra de Atoyac y Bosques de Niebla de la Costa Grande

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry major breeding
Forest Subtropical/Tropical Dry major non-breeding
Forest Subtropical/Tropical Moist Montane major breeding
Forest Subtropical/Tropical Moist Montane major non-breeding
Forest Temperate major breeding
Altitude 1000 - 3500 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2020) Species factsheet: Empidonax occidentalis. Downloaded from http://www.birdlife.org on 10/08/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 10/08/2020.