NT
Chestnut-eared Laughingthrush Ianthocincla konkakinhensis



Taxonomy

Taxonomic note
Previously listed as Garrulax konkakinhensis (del Hoyo and Collar 2016) but moved to current genus following Cibois et al. (2018). Monotypic.

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2021. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2024 Near Threatened B1b(ii,iii)
2016 Vulnerable D2
2013 Vulnerable D2
2012 Vulnerable D2
2008 Vulnerable D2
2004 Vulnerable
2002 Vulnerable
2000 Not Recognised
1994 Not Recognised
1988 Not Recognised
Species attributes

Migratory status not a migrant Forest dependency high
Land-mass type continent
Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 16,700 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing not applicable suspected 2016-2028
Rate of change over the past 10 years/3 generations (longer of the two periods) 2-15,5-10% - - -
Rate of change over the future 10 years/3 generations (longer of the two periods) 2-15,5-10% - - -
Rate of change over the past & future 10 years/3 generations (longer of the two periods) 2-15,5-10% - - -
Generation length 3.87 years - - -
Number of subpopulations 4-10 - - -
Percentage of mature individuals in largest subpopulation 1-89% - - -

Population justification: The population size of this species has not been formally estimated, but at most sites occupied it has been found to be relatively common (Mahood et al. 2012, Gray et al. 2013, Berryman 2023). Given the disjunct nature of its range, its population is assumed to comprise multiple subpopulations, although the connectivity between these is unknown.

Trend justification: In some parts of its range, the population trend of this species is probably stable. At Xe Sap NPA, for example, Gray et al. (2013) found it to be relatively common and the lack of evidence of forest cover loss or degradation (Grantham et al. 2020, Global Forest Watch 2023) and the remote nature of these forests, suggests that any population here has not declined in the past c.20 years. Elsewhere, however, there are anecdotal reports (R. Craik in litt. 2024) it has been declining locally on the Mang Canh Plateau since its discovery by Mahood et al. (2012) and at Dong Ampham, Lao PDR, Berryman (2023) reported significant habitat alterations and, in places, total destruction caused by gold mines within the elevational range of this species. However, it has also been described as tolerant of some degradation, such that forest modification (as is common in both Viet Nam and Lao PDR) may not be an acute threat driving declines.

A majority of projected suitable habitat for this species lies within protected areas (UNEP-WCMC and IUCN 2023) or comprises forest that is, at least for now, rugged and remote enough to resist human exploitation. Over the past three generations (11.61 years: 2011-2023), forest cover in this species' range has reduced by c.5-7% (depending on the assumptions used) (Global Forest Watch 2023, based on data from Hansen et al. [2013] and methods disclosed therein). Translating this into rates of population decline is obfuscated by imperfect knowledge on (1) its occupancy/density within its range; (2) the extent to which trapping is a threat; and (3) the impact of habitat degradation. None of these considerations, however, are thought likely to mean the rate of decline is being substantially underestimated, but to account for the inherit uncertainties underlying the calculations used, the rate of population decline over the past three generations is set to 2-15%, with a best guess of 5-10%. Future rates of population decline are even more difficult to predict, but are suspected to be the same as those in the past in the absence of any indication that threats will lessen or intensify.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Laos extant native yes
Vietnam extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Vietnam Kon Ka Kinh
Vietnam Kon Plong

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane major resident
Altitude 1150 - 1750 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Shifting agriculture Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Species mortality
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation
Energy production & mining Mining & quarrying Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion

Utilisation
Purpose Scale
Pets/display animals, horticulture subsistence, national

Recommended citation
BirdLife International (2024) Species factsheet: Chestnut-eared Laughingthrush Ianthocincla konkakinhensis. Downloaded from https://datazone.birdlife.org/species/factsheet/chestnut-eared-laughingthrush-ianthocincla-konkakinhensis 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.