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.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 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 | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 1,330,000 km2 | |
| Extent of Occurrence (non-breeding) | 772,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | stable | - | suspected | - |
| Generation length | 3.6 years | - | - | - |
Population justification: The global population size has not been quantified, but the species is reported to be locally fairly common (Brazil 1991), while national population sizes have been estimated at c.100-10,000 breeding pairs, c.50-1,000 individuals on migration and c.50-1,000 wintering individuals in Japan and c.100-10,000 breeding pairs and c.50-1,000 individuals on migration in Russia (Brazil 2009).
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 |
|---|---|---|---|---|---|---|
| China (mainland) | extant | vagrant | ||||
| Japan | extant | native | yes | yes | ||
| Russia | extant | native | yes | |||
| Russia (Asian) | extant | native | yes | |||
| South Korea | extant | native | yes | |||
| USA | extant | vagrant |
| Country/Territory | IBA Name |
|---|---|
| Japan | Hidaka mountains |
| Japan | Mount Hakusan |
| Japan | Mount Hyonosen |
| Japan | Mounts Asahidake and Gassan |
| Japan | Mounts Asama, Shirane and Tanigawa |
| Japan | Mounts Azuma and Bandai |
| Japan | Mounts Nogo-hakusan and Ibuki |
| Japan | Mounts Zao and Funagata |
| Japan | Myoko, Togakushi highlands |
| Japan | Okutadami, Okunikko and Okutone mountains |
| Japan | Tsurugi range |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Boreal | suitable | non-breeding |
| Forest | Boreal | suitable | breeding |
| Forest | Temperate | suitable | non-breeding |
| Forest | Temperate | suitable | breeding |
| Wetlands (inland) | Permanent Rivers/Streams/Creeks (includes waterfalls) | suitable | non-breeding |
| Wetlands (inland) | Permanent Rivers/Streams/Creeks (includes waterfalls) | suitable | breeding |
| Altitude | Occasional altitudinal limits |
| Purpose | Scale |
|---|---|
| Pets/display animals, horticulture | international |
| Pets/display animals, horticulture | international |
Recommended citation
BirdLife International (2024) Species factsheet: Grey Bunting Emberiza variabilis. Downloaded from
https://datazone.birdlife.org/species/factsheet/grey-bunting-emberiza-variabilis on 23/12/2024.
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 23/12/2024.