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Green-billed Coucal Centropus chlororhynchos

IUCN Red List Criteria

Critically Endangered  
Endangered  
Vulnerable B1ab(i,ii,iii,iv,v); C2a(i) 

IUCN Red List history

Year Category
2013 Vulnerable
2012 Vulnerable
2008 Vulnerable
2004 Vulnerable
2000 Vulnerable
1996 Endangered
1994 Endangered
1988 Threatened

Species attributes

Migratory status not a migrant Forest dependency High
Land mass type shelf island
Average mass -

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 12,100 medium
Number of locations 11-100 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 2500-9999 poor Estimated 2000
Population trend Decreasing poor -
Number of subpopulations 2-100 - - -
Largest subpopulation 251-1000 - - -
Generation length (yrs) 3.8 - - -
Population justification: The population is unlikely to number more than a few thousand individuals, based on available records and survey results, thus there are assumed to be fewer than 10,000 mature individuals. It is placed in the band 2,500-9,999 mature individuals. This equates to 3,750-14,999 individuals in total, rounded here to 3,500-15,000 individuals.
Trend justification: On-going illegal logging of wet zone forests is the principal threat to this species and is suspected to be driving a continuing, moderate population decline.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Sri Lanka Native Extant Yes      

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Sri Lanka Amanawala site factsheet
Sri Lanka Ayagama site factsheet
Sri Lanka Bodhinagala site factsheet
Sri Lanka Delgoda / Kudumiriya / Kobahadukanda site factsheet
Sri Lanka Delmella site factsheet
Sri Lanka Delwela / Panilkanda / Walankanda site factsheet
Sri Lanka Kithulgala site factsheet
Sri Lanka Morapitiya-Runakanda site factsheet
Sri Lanka Morningside and Handapan Ella Plains (Sinharaja IBA) site factsheet
Sri Lanka Nakiyadeniya / Kanneliya / Dediyagala site factsheet
Sri Lanka Peak Wilderness Sanctuary site factsheet
Sri Lanka Tangamalai site factsheet
Sri Lanka Yagirala site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Altitude 0 - 760 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 Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Annual & perennial non-timber crops / Small-holder farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Annual & perennial non-timber crops / Small-holder farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting / Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting / Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting / Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion
Invasive and other problematic species, genes & diseases Problematic native species/diseases Timing Scope Severity Impact
Ongoing Unknown Unknown Unknown
Stresses
Competition
Natural system modifications Fire & fire suppression / Increase in fire frequency/intensity Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion
Natural system modifications Fire & fire suppression / Increase in fire frequency/intensity Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2014) Species factsheet: Centropus chlororhynchos. Downloaded from http://www.birdlife.org on 20/10/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 20/10/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Vulnerable
Family Cuculidae (Cuckoos)
Species name author Blyth, 1849
Population size 2500-9999 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 12,100 km2
Country endemic? Yes
Links to further information
- Summary information on this species