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 | high |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 2,710,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | decreasing | - | suspected | - |
| Generation length | 3.01 years | - | - | - |
Population justification: The population size is unknown, but the species is described as common or fairly common, although uncommon to rare in Hong Kong and uncommon in Cambodia (del Hoyo et al. 2006). This species is considered to have a high dependency on forest habitat, and tree cover is estimated to have declined by 14.9% within its mapped range over the past 10 years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). It is therefore tentatively suspected that this rate of cover loss may have led to a decline of between 1-19% in the species' population size over the same time frame, with a best estimate of reduction being 11-14%.
Trend justification: .
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Cambodia | extant | native | yes | |||
| China (mainland) | extant | native | yes | |||
| Hong Kong (China) | extant | native | yes | |||
| Laos | extant | native | yes | |||
| Myanmar | extant | native | yes | |||
| Thailand | extant | native | yes | |||
| Vietnam | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Cambodia | Phnom Bokor |
| Cambodia | Snoul / Keo Sema / O Reang |
| Laos | Dong Ampham |
| Laos | Dong Kalo |
| Laos | Dong Khanthung |
| Laos | Eastern Bolikhamxay Mountains |
| Laos | Hin Namno |
| Laos | Nakai Plateau |
| Laos | Nakai-Nam Theun |
| Laos | Nam Xam |
| Laos | Phou Dendin |
| Laos | Phou Loeuy |
| Laos | Phou Xiang Thong |
| Laos | Siphandon |
| Laos | Upper Xe Kaman |
| Laos | Xe Khampho / Xe Pian |
| Laos | Xe Kong Plains |
| Thailand | Doi Chiang Dao |
| Thailand | Doi Pha Chang |
| Thailand | Huai Kha Khaeng |
| Thailand | Kaeng Krachan |
| Thailand | Khao Laem |
| Thailand | Khao Soi Dao |
| Thailand | Khao Yai |
| Thailand | Mae Wong |
| Thailand | Thung Yai - Naresuan |
| Vietnam | Bach Ma |
| Vietnam | Ban Bung |
| Vietnam | Ban Thi - Xuan Lac |
| Vietnam | Chu Yang Sin |
| Vietnam | Cuc Phuong |
| Vietnam | Ke Bang |
| Vietnam | Ke Go |
| Vietnam | Khe Net |
| Vietnam | Kon Cha Rang |
| Vietnam | Lo Go - Xa Mat |
| Vietnam | Nam Cat Tien |
| Vietnam | Phong Dien |
| Vietnam | Pu Mat |
| Vietnam | Sinh Long |
| Vietnam | Vu Quang |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Altitude | 0 - 1100 m | Occasional altitudinal limits |
| Purpose | Scale |
|---|---|
| Food - human | subsistence, national |
| Pets/display animals, horticulture | international |
Recommended citation
BirdLife International (2024) Species factsheet: Hainan Blue Flycatcher Cyornis hainanus. Downloaded from
https://datazone.birdlife.org/species/factsheet/hainan-blue-flycatcher-cyornis-hainanus on 22/11/2024.
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 22/11/2024.