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 |
---|---|---|
C2a(i,ii) | B1ab(iii,v); C2a(i,ii); D | B1ab(iii,v); C2a(i,ii); D1 |
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 |
Migratory status | full migrant | Forest dependency | medium |
Land-mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 610 km2 | medium |
Extent of Occurrence (non-breeding) | 1,700 km2 | medium |
Number of locations | 6-10 | - |
Severely fragmented? | yes | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 50-249 mature individuals | good | estimated | 2011 |
Population trend | decreasing | poor | inferred | - |
Generation length | 4.7 years | - | - | - |
Number of subpopulations | 1 | - | - | - |
Percentage of mature individuals in largest subpopulation | 100% | - | - | - |
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 | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
China (mainland) | extant | native | yes | yes |
Country/Territory | IBA Name |
---|
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 |
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 | Medium Impact: 7 | ||||||
|
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Biological resource use | Hunting & trapping terrestrial animals - Persecution/control | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Rapid Declines | Medium Impact: 6 | ||||||
|
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Residential & commercial development | Tourism & recreation areas | Timing | Scope | Severity | Impact | ||||
Future | Minority (<50%) | Very Rapid Declines | Medium Impact: 6 | ||||||
|
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Transportation & service corridors | Roads & railroads | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Very Rapid Declines | Medium Impact: 7 | ||||||
|
Purpose | Scale |
---|---|
Pets/display animals, horticulture | international |
Recommended citation
BirdLife International (2024) Species factsheet: Blue-crowned Laughingthrush Pterorhinus courtoisi. Downloaded from
https://datazone.birdlife.org/species/factsheet/blue-crowned-laughingthrush-pterorhinus-courtoisi on 26/11/2024.
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 26/11/2024.