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 -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,040,000
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Decreasing 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) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 6.7 - - -

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 Occurrence status Presence Resident Breeding Non-breeding Passage
Cambodia N Extant Yes
China (mainland) N Extant Yes
Laos N Extant Yes
Thailand N Extant Yes
Vietnam N Extant Yes

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

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 (2022) Species factsheet: Temnurus temnurus. Downloaded from http://www.birdlife.org on 09/12/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 09/12/2022.