LC
Ratchet-tailed Treepie Temnurus temnurus



Taxonomy

Taxonomic note

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 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Near Threatened
Species attributes

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

Estimate Data quality
Extent of Occurrence (breeding/resident) 1,040,000 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing - suspected -
Generation length 6.7 years - - -

Population justification: The global population size has not been quantified, but the species is reported to be not uncommon in Vietnam (Madge and Burn 1993).

Trend justification: The population is suspected to be in decline owing to possibly ongoing habitat destruction on Hainan (Madge and Burn 1993).


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Cambodia extant native yes
China (mainland) extant native yes
Laos extant native yes
Thailand extant native yes
Vietnam extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Laos Eastern Bolikhamxay Mountains
Laos Hin Namno
Laos Nakai-Nam Theun
Laos Nam Xam
Thailand Kaeng Krachan
Vietnam Bach Ma
Vietnam Ban Bung
Vietnam Ban Thi - Xuan Lac
Vietnam Chu Prong
Vietnam Cuc Phuong
Vietnam Dakrong
Vietnam Ke Bang
Vietnam Ke Go
Vietnam Khe Net
Vietnam Kon Cha Rang
Vietnam Kon Ka Kinh
Vietnam Nam Cat Tien
Vietnam Phong Dien
Vietnam Phong Nha
Vietnam Pu Mat
Vietnam Sinh Long
Vietnam Tam Dao
Vietnam Vu Quang

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

Recommended citation
BirdLife International (2024) Species factsheet: Ratchet-tailed Treepie Temnurus temnurus. Downloaded from https://datazone.birdlife.org/species/factsheet/ratchet-tailed-treepie-temnurus-temnurus on 23/11/2024.
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 23/11/2024.