Data Zone
Taxonomic note
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.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 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 | altitudinal migrant | Forest dependency | low |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 4,390,000 km2 | |
| Extent of Occurrence (non-breeding) | 2,470,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | stable | - | suspected | - |
| Generation length | 3.9 years | - | - | - |
Population justification: The population size is unknown, but the species is described as common to uncommon (del Hoyo et al. 2006).
Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Bangladesh | extant | native | ||||
| Bhutan | extant | native | ||||
| China (mainland) | extant | native | ||||
| India | extant | native | ||||
| Laos | extant | native | ||||
| Myanmar | extant | native | ||||
| Nepal | extant | native | ||||
| Pakistan | extant | native | ||||
| Sri Lanka | extant | vagrant | yes | |||
| Thailand | extant | native | ||||
| Vietnam | extant | native |
| Country/Territory | IBA Name |
|---|---|
| Laos | Nam Ha |
| Nepal | Annapurna Conservation Area |
| Nepal | Khaptad National Park |
| Nepal | Dhorpatan Hunting Reserve |
| Nepal | Kanchenjungha Conservation Area |
| Nepal | Langtang National Park |
| Nepal | Makalu Barun National Park |
| Nepal | Rara National Park |
| Nepal | Sagarmatha National Park |
| Nepal | Tamur valley and watershed |
| Vietnam | Fan Si Pan |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Arable Land | suitable | non-breeding |
| Artificial/Terrestrial | Plantations | suitable | non-breeding |
| Forest | Subtropical/Tropical Moist Montane | suitable | breeding |
| Grassland | Subtropical/Tropical Dry | suitable | non-breeding |
| Shrubland | Subtropical/Tropical Dry | suitable | non-breeding |
| Shrubland | Subtropical/Tropical High Altitude | major | breeding |
| Shrubland | Subtropical/Tropical High Altitude | suitable | non-breeding |
| Shrubland | Subtropical/Tropical Moist | suitable | non-breeding |
| Wetlands (inland) | Bogs, Marshes, Swamps, Fens, Peatlands | suitable | non-breeding |
| Altitude | Occasional altitudinal limits |
Recommended citation
BirdLife International (2023) Species factsheet: Ficedula tricolor. Downloaded from
http://datazone.birdlife.org/species/factsheet/slaty-blue-flycatcher-ficedula-tricolor on 05/12/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://datazone.birdlife.org on 05/12/2023.
