NT
Green Broadbill Calyptomena viridis



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.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

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

Red List history
Year Category Criteria
2016 Near Threatened A2c+3c+4c
2012 Near Threatened A2c+3c+4c
2008 Near Threatened A2c; A3c; A4c
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Land-mass type - continent
Land-mass type - shelf island
Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 4,240,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
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) 20-29 - - -
Decline (10 years/3 generation past and future) 20-29 - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 4.2 - - -

Population justification: The population size of this species has not been quantified; it is considered fairly common to locally common.

Trend justification: Data on trends are lacking, but declines have inevitably occurred as this species is very sensitive to logging, and continued habitat loss throughout its range has been rapid and extensive. An on-going and moderately rapid population decline is therefore suspected overall.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Brunei N Extinct Yes
Indonesia N Extant Yes
Malaysia N Extant Yes
Myanmar N Extant Yes
Singapore N Extinct Yes
Thailand N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Malaysia Nakawan Range
Malaysia Ulu Muda
Malaysia Bintang Range
Malaysia Belum-Temenggor
Malaysia Kledang Range
Malaysia Central Titiwangsa Range
Malaysia Hulu Gombak-Sungai Lalang forest
Malaysia Endau-Rompin
Malaysia Panti forest
Malaysia Krau Wildlife Reserve
Malaysia Taman Negara National Park
Malaysia South-East Pahang peat swamp forest
Malaysia Crocker Range
Malaysia Mount Kinabalu
Malaysia Trus Madi Range
Malaysia Danum Valley Conservation Area
Malaysia Maliau Basin Conservation Area
Malaysia Tabin Wildlife Reserve
Malaysia Kabili-Sepilok
Malaysia Kulamba Wildlife Reserve
Malaysia Tanjung Datu-Samunsam Protected Area
Malaysia Gunung Pueh
Malaysia Bako-Buntal Bay
Malaysia Gunung Penrissen
Malaysia Lanjak Entimau Wildlife Sanctuary
Malaysia Danum-Linau
Malaysia Similajau National Park
Malaysia Niah National Park
Malaysia Lambir Hills National Park
Malaysia Mulu - Buda Protected Area
Thailand Bala Sector, Hala-Bala Wildlife Sanctuary
Thailand Bu Do - Sungai Padi
Thailand Chaloem Pra Kiet (Pa Phru to Daeng)
Thailand Hala Sector, Hala-Bala Wildlife Sanctuary and Bang Lang National Park
Thailand Kaeng Krachan
Thailand Khao Banthad
Thailand Khao Luang
Thailand Khao Nor Chuchi
Thailand Thaleban

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Plantations suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Moist Montane suitable resident
Forest Subtropical/Tropical Swamp suitable resident
Altitude 0 - 1700 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 Wood & pulp plantations - Agro-industry plantations 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: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation
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, Ecosystem conversion
Natural system modifications Fire & fire suppression - Increase in fire frequency/intensity Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation

Recommended citation
BirdLife International (2020) Species factsheet: Calyptomena viridis. Downloaded from http://www.birdlife.org on 23/10/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/10/2020.