VU
Brown-chested Jungle-flycatcher Cyornis brunneatus



Taxonomy

Taxonomic note
Cyornis brunneatus and C. nicobaricus (del Hoyo and Collar 2016) were previously lumped as Rhinomyias brunneatus 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.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - C2a(ii)

Red List history
Year Category Criteria
2016 Vulnerable C2a(ii)
Species attributes

Migratory status full migrant Forest dependency Medium
Land mass type Average mass -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 908,000 medium
Extent of Occurrence non-breeding (km2) 115,000 medium
Number of locations 11-100 -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 2500-9999 poor estimated 2000
Population trend Decreasing poor suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 10-19 - - -
Decline (10 years/3 generation past and future) 10-19 - - -
Number of subpopulations 1 - - -
Percentage in largest subpopulation 100 - - -
Generation length (yrs) 3.8 - - -

Population justification: The population is estimated to number 2,500-9,999 mature individuals based on an assessment of known records, descriptions of abundance and range size. This is consistent with recorded population density estimates for congeners or close relatives with a similar body size (such estimates span 10-90 individuals per km2) and the fact that only a proportion of the estimated Extent of Occurrence is likely to be occupied. This estimate equates to 3,750-14,999 individuals in total, rounded here to 3,500-15,000 individuals.

Trend justification: A moderately rapid population decline is suspected to be occurring, owing to habitat loss and degradation in both its breeding and non-breeding ranges. The requirement for mature primary forest within the South-East Asian wintering grounds suggests that this species may have been particularly vulnerable to recent habitat loss, especially the expansion of plantations in lowland regions.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Brunei V Extant
China (mainland) N Extant Yes Yes
Hong Kong (China) N Extant Yes
Malaysia N Extant Yes Yes
Singapore N Extant Yes Yes
Thailand N Extant Yes Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Thailand Huai Kha Khaeng
Thailand Kaeng Krachan
Thailand Bung Boraphet
Thailand Inner Gulf of Thailand
Thailand Khao Nor Chuchi
Thailand Khao Banthad
Thailand Bala Sector, Hala-Bala Wildlife Sanctuary
Thailand Lower Central Basin
China (mainland) Mount Huang Shan
China (mainland) Qingliangfeng Nature Reserve (Anhui)
China (mainland) Guniujiang Nature Reserve
China (mainland) Jiugong Shan Nature Reserve
China (mainland) Huping Shan Nature Reserve
China (mainland) Badagongshan Nature Reserve
China (mainland) Wulingyuan
China (mainland) Xiaoxi Nature Reserve
China (mainland) Dawei Shan Nature Reserve (Hunan)
China (mainland) Nanyue Nature Reserve
China (mainland) Wugang Yunshan Nature Reserve
China (mainland) Taoyuandong Nature Reserve
China (mainland) Huangsang Nature Reserve
China (mainland) Bamian Shan Nature Reserve
China (mainland) Dupangling Nature Reserve
China (mainland) Jiuyi Shan Nature Reserve
China (mainland) Mangshan Nature Reserve
China (mainland) Jiulong Shan Nature Reserve (Zhejiang)
China (mainland) Fengyang Shan - Baishanzu Nature Reserve
China (mainland) Wuyi Shan Nature Reserve (Fujian)
China (mainland) Nanling mountains
China (mainland) Babao Shan Nature Reserve
China (mainland) Buliuhe Nature Reserve
China (mainland) Daping Shan Nature Reserve
China (mainland) Longhua
China (mainland) Gulongshan
China (mainland) Longshan section of Nonggang
China (mainland) Shiwandashan
Malaysia Bintang Range
Malaysia Selangor Heritage Park
Malaysia Nakawan Range
Malaysia Panti forest
Malaysia Lanjak Entimau Wildlife Sanctuary
Malaysia Central Titiwangsa Range
Hong Kong (China) Tai Po Kau, Shing Mun and Tai Mo Shan area
Singapore Ubin-Khatib
Singapore Central Forest
China (mainland) Nonggang
Malaysia Taman Negara National Park

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable breeding
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable non-breeding
Forest Subtropical/Tropical Moist Lowland major non-breeding
Forest Subtropical/Tropical Moist Lowland major breeding
Shrubland Subtropical/Tropical Moist suitable passage
Altitude 600 - 1600 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Agro-industry farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Annual & perennial non-timber crops - Small-holder farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Agro-industry grazing, ranching or farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Small-holder grazing, ranching or farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Species mortality
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets/display animals, horticulture - - Non-trivial Recent

Recommended citation
BirdLife International (2022) Species factsheet: Cyornis brunneatus. Downloaded from http://www.birdlife.org on 09/12/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 09/12/2022.