Data Zone
Taxonomic note
Ficedula hodgsoni (del Hoyo and Collar 2016) - Pygmy Blue-flycatcher - was previously placed in the genus Muscicapella following Sibley & Monroe (1990, 1993). Ficedula erithacus (del Hoyo and Collar 2016) - Slaty-backed Flycatcher - was previously listed as F. hodgsonii following Sibley & Monroe (1990, 1993).
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 |
|---|---|---|
| 2024 | 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) | 2,750,000 km2 | |
| Extent of Occurrence (non-breeding) | 3,380,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | decreasing | - | suspected | - |
| Generation length | 2.54 years | - | - | - |
Population justification: The population size is unknown, but the species is described as rare to fairly common (del Hoyo et al. 2006), while the population in China has been estimated at < c.100 breeding pairs and < c.50 individuals on migration (Brazil 2009). This species is considered to have a medium dependency on forest habitat, and tree cover is estimated to have declined by 6% within its mapped range over the past 10 years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Therefore, as a precautionary measure, it is tentatively suspected that this loss of cover may have led to a decline of between 1-19% in the species' population size over the same time frame.
Trend justification: .
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Bhutan | extant | native | yes | |||
| Cambodia | extant | vagrant | ||||
| China (mainland) | extant | native | yes | |||
| India | extant | native | yes | |||
| Laos | extant | native | yes | |||
| Myanmar | extant | native | yes | |||
| Nepal | extant | native | yes | |||
| Thailand | extant | native | yes | |||
| Vietnam | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Laos | Nam Ha |
| Laos | Phou Loeuy |
| Nepal | Makalu Barun National Park |
| Nepal | Tamur valley and watershed |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Lowland | suitable | non-breeding |
| Forest | Subtropical/Tropical Moist Montane | major | breeding |
| Shrubland | Subtropical/Tropical Moist | suitable | non-breeding |
| Altitude | 600 - 4300 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2024) Species factsheet: Slaty-backed Flycatcher Ficedula erithacus. Downloaded from
https://datazone.birdlife.org/species/factsheet/slaty-backed-flycatcher-ficedula-erithacus 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.