Data Zone
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.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2021 | Least Concern | |
| 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 |
| Migratory status | full migrant | Forest dependency | high |
| Land-mass type | Average mass | 12 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 4,970,000 km2 | medium |
| Extent of Occurrence (non-breeding) | 968,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 3600000 mature individuals | poor | estimated | 2019 |
| Population trend | stable | - | estimated | - |
| Generation length | 2.44 years | - | - | - |
Population justification: The global population is estimated to number 3,600,000 mature individuals (Partners in Flight 2019).
Trend justification: The species has stable population trends (Partners in Flight 2019; Rosenberg et al. 2019).
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Canada | extant | native | yes | |||
| Mexico | extant | native | yes | yes | yes | yes |
| USA | extant | native | yes | yes |
| Country/Territory | IBA Name |
|---|---|
| Mexico | El Carricito |
| Mexico | Guacamayita |
| Mexico | La Malinche |
| Mexico | Las Bufas |
| Mexico | Mesa de Guacamayas |
| Mexico | Monte Escobedo |
| Mexico | Nevado de Colima |
| Mexico | Omiltemi |
| Mexico | San Antonio Peña Nevada |
| Mexico | Sierra de Taxco - Nevado de Toluca |
| Mexico | Sierra de Valparaíso |
| Mexico | Tacámbaro |
| Mexico | Tancítaro |
| Mexico | Tlaxiaco |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Dry | major | non-breeding |
| Forest | Subtropical/Tropical Dry | major | breeding |
| Forest | Subtropical/Tropical Moist Montane | major | non-breeding |
| Forest | Subtropical/Tropical Moist Montane | major | breeding |
| Forest | Temperate | major | breeding |
| Altitude | 1000 - 3500 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2024) Species factsheet: Cordilleran Flycatcher Empidonax occidentalis. Downloaded from
https://datazone.birdlife.org/species/factsheet/cordilleran-flycatcher-empidonax-occidentalis on 22/11/2024.
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 22/11/2024.