Data Zone
Taxonomic note
Basileuterus lachrymosus (del Hoyo and Collar 2016) was previously placed in the genus Euthlypis and listed as E. lachrymosa following AOU (1998 & supplements); Sibley and 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 |
|---|---|---|
| 2020 | 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 | not a migrant | Forest dependency | high |
| Land-mass type | Average mass | 26 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 1,370,000 km2 | medium |
| Extent of Occurrence (non-breeding) | 1,220,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 50000-499999 mature individuals | poor | estimated | 2009 |
| Population trend | decreasing | - | suspected | - |
| Generation length | 2.9 years | - | - | - |
Population justification: The global population is estimated to number 50,000-499,999 mature individuals (Partners in Flight 2019).
Trend justification:
The population is undergoing a moderate decline (Partners in Flight 2019).
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| El Salvador | extant | native | yes | |||
| Guatemala | extant | native | yes | |||
| Honduras | extant | native | yes | |||
| Mexico | extant | native | yes | yes | ||
| Nicaragua | extant | native | yes | |||
| USA | extant | vagrant | yes |
| Country/Territory | IBA Name |
|---|
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Altitude | 0 - 1200 m | Occasional altitudinal limits |
| Purpose | Scale |
|---|---|
| Sport hunting/specimen collecting | subsistence, national |
Recommended citation
BirdLife International (2024) Species factsheet: Fan-tailed Warbler Basileuterus lachrymosus. Downloaded from
https://datazone.birdlife.org/species/factsheet/fan-tailed-warbler-basileuterus-lachrymosus on 23/11/2024.
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 23/11/2024.