CR
Blue-crowned Laughingthrush Garrulax courtoisi



Taxonomy

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(i,ii) B1ab(iii,v); C2a(i,ii); D B1ab(iii,v); C2a(i,ii); D1

Red List history
Year Category Criteria
2018 Critically Endangered C2a(i,ii)
2016 Critically Endangered C2a(i,ii)
2013 Critically Endangered C2a(i,ii)
2012 Critically Endangered C2a(i,ii)
2011 Critically Endangered C2a(ii)
2010 Critically Endangered C2a(ii)
2009 Critically Endangered C2a(ii)
2008 Critically Endangered
2007 Critically Endangered
2006 Least Concern
2004 Not Recognised
2000 Not Recognised
1994 Not Recognised
1988 Not Recognised
Species attributes

Migratory status full migrant Forest dependency Medium
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 610 medium
Extent of Occurrence non-breeding (km2) 1,700 medium
Number of locations 6-10 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 50-249 good estimated 2011
Population trend Decreasing poor inferred -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations 1 - - -
Largest subpopulations 100 - - -
Generation length (yrs) 4.7 - - -

Population justification: A total wild population of more than 323 individuals was estimated in 2016 (He Fenqi in litt. 2016), but the number of mature individuals of this colonial and cooperative breeder is conservatively estimated at fewer than 250.

Trend justification: This species remains poorly known and may prove to be more common than current evidence suggests. Data from its known colonies show mild population fluctuations, but a decline of unknown severity is thought to be occurring owing to low productivity and the threat of building developments to several colonies.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
China (mainland) N Extant Yes Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
China (mainland) Guniujiang Nature Reserve
China (mainland) Wuyuan Forest

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major breeding
Shrubland Subtropical/Tropical Moist suitable breeding
Altitude   Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Very Rapid Declines
Stresses
Species mortality
Biological resource use Hunting & trapping terrestrial animals - Persecution/control Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines
Stresses
Reduced reproductive success
Residential & commercial development Tourism & recreation areas Timing Scope Severity Impact
Future Minority (<50%) Very Rapid Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Transportation & service corridors Roads & railroads Timing Scope Severity Impact
Ongoing Minority (<50%) Very Rapid Declines
Stresses
Ecosystem degradation, Ecosystem conversion

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

Recommended citation
BirdLife International (2019) Species factsheet: Garrulax courtoisi. Downloaded from http://www.birdlife.org on 22/07/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/07/2019.