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 |
|---|---|---|
| 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 | not a migrant | Forest dependency | medium |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 3,280,000 km2 | |
| Extent of Occurrence (non-breeding) | 3,550,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | decreasing | - | suspected | - |
| Generation length | 2.1 years | - | - | - |
Population justification: The population size is unknown, but the species is described as fairly common to common or uncommon (del Hoyo et al. 2006). This species is considered to have a medium dependency on forest habitat, and tree cover is estimated to have declined by 10.5% 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 |
|---|---|---|---|---|---|---|
| Bangladesh | extant | native | yes | |||
| Bhutan | extant | native | yes | |||
| 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 | Eastern Bolikhamxay Mountains |
| Laos | Nakai-Nam Theun |
| Laos | Phou Ahyon |
| Laos | Phou Loeuy |
| Nepal | Annapurna Conservation Area |
| Nepal | Bardia National Park |
| Nepal | Kanchenjungha Conservation Area |
| Nepal | Khaptad National Park |
| Nepal | Langtang National Park |
| Nepal | Mai Valley forests |
| Nepal | Makalu Barun National Park |
| Nepal | Phulchoki Mountain forests |
| Nepal | Shivapuri-Nagarjun National Park |
| Nepal | Tamur valley and watershed |
| Thailand | Doi Chiang Dao |
| Thailand | Doi Inthanon |
| Thailand | Doi Suthep-Pui |
| Thailand | Mae Fang |
| Thailand | Mae Jarim National Park |
| Thailand | Umphang |
| Vietnam | Ban Thi - Xuan Lac |
| Vietnam | Du Gia |
| Vietnam | Fan Si Pan |
| Vietnam | Kon Ka Kinh |
| Vietnam | Kon Plong |
| Vietnam | Ngoc Linh |
| Vietnam | Pu Mat |
| Vietnam | Sinh Long |
| Vietnam | Tay Con Linh |
| Vietnam | Van Ban |
| Vietnam | Vu Quang |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Lowland | suitable | resident |
| Forest | Subtropical/Tropical Moist Montane | suitable | resident |
| Grassland | Subtropical/Tropical Dry | suitable | resident |
| Shrubland | Subtropical/Tropical High Altitude | suitable | resident |
| Shrubland | Subtropical/Tropical Moist | suitable | resident |
| Wetlands (inland) | Bogs, Marshes, Swamps, Fens, Peatlands | suitable | resident |
| Altitude | 280 - 2560 m | Occasional altitudinal limits |
| Purpose | Scale |
|---|---|
| Food - human | subsistence, national |
| Pets/display animals, horticulture | international |
Recommended citation
BirdLife International (2024) Species factsheet: Small Niltava Niltava macgrigoriae. Downloaded from
https://datazone.birdlife.org/species/factsheet/small-niltava-niltava-macgrigoriae 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.