• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2018	Least Concern
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	Lower Risk/Least Concern

Migratory status	full migrant	Forest dependency	high
Land-mass type		Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	5,200,000 km2	medium
Extent of Occurrence (non-breeding)	5,320,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	stable	-	suspected	-
Generation length	3.7 years	-	-	-

Population justification: The global population size has not been quantified, but the species is reported to be fairly common to uncommon (Grimmett et al. 1998, Robson 2000), while the population in Taiwan has been estimated at c.100-10,000 breeding pairs (Brazil 2009).

Trend justification:

The species is suspected to be stable in the absence of evidence for any declines or substantial threats.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Bangladesh	extant	native
Bhutan	extant	native
Cambodia	extant	native
China (mainland)	extant	native
India	extant	native
Laos	extant	native		yes
Myanmar	extant	native
Nepal	extant	native
Taiwan, China	extant	native
Thailand	extant	native
Vietnam	extant	native

Country/Territory	IBA Name
Laos	Phou Dendin
Laos	Dong Ampham
Laos	Nam Et
Laos	Phou Loeuy
Laos	Nam Ha
Laos	Xe Khampho / Xe Pian
Laos	Xe Sap
Laos	Dakchung Plateau
Laos	Phou Ahyon
Cambodia	Snoul / Keo Sema / O Reang
Laos	Eastern Bolikhamxay Mountains
Laos	Nakai Plateau
Laos	Nakai-Nam Theun
Taiwan, China	Shihmen Reservoir
Nepal	Bardia National Park
Nepal	Dang Deukhuri foothill forests and west Rapti wetlands
Nepal	Khaptad National Park
Nepal	Kanchenjungha Conservation Area
Nepal	Langtang National Park
Nepal	Makalu Barun National Park
Nepal	Phulchoki Mountain forests
Nepal	Shivapuri-Nagarjun National Park
Nepal	Tamur valley and watershed
Nepal	Annapurna Conservation Area
India	Barail Wildlife Sanctuary
India	Barail Range forests
Vietnam	Kon Ka Kinh
Vietnam	Vu Quang
Vietnam	Ban Bung
Vietnam	Sinh Long
Vietnam	Ban Thi - Xuan Lac
Vietnam	Chu Yang Sin
Vietnam	Tam Dao
Vietnam	Cuc Phuong
Vietnam	Bi Dup
Vietnam	Pu Mat
Vietnam	Ngoc Linh
Vietnam	Tuyen Lam
Vietnam	Tay Con Linh
Vietnam	Du Gia
Vietnam	Cong Troi
Vietnam	Van Ban
Thailand	Doi Chiang Dao
Thailand	Doi Inthanon
Thailand	Doi Phukha
Thailand	Doi Suthep-Pui
Thailand	Huai Kha Khaeng
Thailand	Khao Ang Ru Nai
Thailand	Khao Soi Dao
Thailand	Khao Yai
Thailand	Mae Fang
Thailand	Mae Jarim National Park
Thailand	Nanthaburi
Thailand	Thung Yai - Naresuan
Thailand	Umphang

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	non-breeding
Forest	Subtropical/Tropical Moist Lowland	major	breeding
Forest	Subtropical/Tropical Moist Montane	major	non-breeding
Forest	Subtropical/Tropical Moist Montane	major	breeding
Altitude		Occasional altitudinal limits

Purpose	Primary form used	Life stage used	Source	Scale	Level	Timing
Pets/display animals, horticulture	-	-			non-trivial	recent

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Recommended citation
BirdLife International (2023) Species factsheet: Oriolus traillii. Downloaded from http://datazone.birdlife.org/species/factsheet/maroon-oriole-oriolus-traillii on 06/12/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 06/12/2023.