Data Zone
Taxonomic note
Setophaga occidentalis (del Hoyo and Collar 2016) was previously placed in the genus Dendroica following AOU (1998 & supplements); Sibley & Monroe (1990, 1993); Stotz et al. (1996).
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 | |
| 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 |
| Migratory status | full migrant | Forest dependency | medium |
| Land-mass type | Average mass | 10 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 718,000 km2 | medium |
| Extent of Occurrence (non-breeding) | 2,650,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 2500000 mature individuals | poor | estimated | 2019 |
| Population trend | stable | - | estimated | - |
| Generation length | 2.68 years | - | - | - |
Population justification: The global population is estimated to number 2.5 million mature individuals (Partners in Flight 2019).
Trend justification: The species has been undergoing a very slow decline since 1970 (Partners in Flight 2019; Rosenberg et al. 2019). Short-term trend suggest that the population has been stable over the past ten years (Pardieck et al. 2018).
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Belize | extant | vagrant | yes | |||
| Canada | extant | vagrant | yes | |||
| Costa Rica | extant | native | yes | |||
| El Salvador | extant | native | yes | |||
| Guatemala | extant | native | yes | |||
| Honduras | extant | native | yes | |||
| Mexico | extant | native | yes | yes | ||
| Nicaragua | extant | native | yes | |||
| Panama | extant | vagrant | yes | |||
| USA | extant | native | yes | yes | yes |
| Country/Territory | IBA Name |
|---|
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Montane | major | non-breeding |
| Forest | Temperate | major | breeding |
| Altitude | 1500 - 3000 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2024) Species factsheet: Hermit Warbler Setophaga occidentalis. Downloaded from
https://datazone.birdlife.org/species/factsheet/hermit-warbler-setophaga-occidentalis on 22/12/2024.
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 22/12/2024.