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.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2021 | 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 | Low |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 9,860,000 | medium |
| Extent of Occurrence non-breeding (km2) | 4,120,000 | medium |
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 8100000 | poor | estimated | 2020 |
| Population trend | Decreasing | estimated | - | |
| 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 | - | - | - | |
| Percentage in largest subpopulation | - | - | - |
Population justification: The global population is estimated to number 8,100,000 mature individuals (Partners in Flight 2020).
Trend justification:
The species has been undergoing a moderate decline between 1970 and 2017, at an average rate of 12% over ten years (Partners in Flight 2019; Rosenberg et al. 2019).
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Belize | N | Extant | Yes | |||
| Canada | N | Extant | Yes | |||
| Colombia | N | Extant | Yes | |||
| Costa Rica | N | Extant | Yes | Yes | ||
| Cuba | V | Extant | Yes | |||
| Ecuador | N | Extant | Yes | |||
| El Salvador | N | Extant | Yes | Yes | ||
| Guatemala | N | Extant | Yes | Yes | ||
| Honduras | N | Extant | Yes | Yes | ||
| Mexico | N | Extant | Yes | Yes | ||
| Nicaragua | N | Extant | Yes | Yes | ||
| Panama | N | Extant | Yes | Yes | ||
| Puerto Rico (to USA) | V | Extant | ||||
| USA | N | Extant | Yes | Yes | ||
| Venezuela | N | Extant | Yes |
| Country/Territory | IBA Name |
|---|---|
| Canada | Nicolle Flats |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Pastureland | suitable | non-breeding |
| Forest | Subtropical/Tropical Moist Lowland | suitable | non-breeding |
| Shrubland | Subtropical/Tropical Dry | suitable | non-breeding |
| Shrubland | Subtropical/Tropical Moist | major | breeding |
| Shrubland | Temperate | major | breeding |
| Wetlands (inland) | Shrub Dominated Wetlands | suitable | breeding |
| Altitude | 0 - 2500 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2022) Species factsheet: Empidonax traillii. Downloaded from
http://www.birdlife.org on 28/06/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 28/06/2022.
