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

Taxonomic note
Psilopogon henricii (del Hoyo and Collar 2014) was previously placed in the genus Megalaima.

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.

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

Migratory status	not a migrant	Forest dependency	high
Land-mass type	continent shelf island	Average mass	74 g

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	3,000,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	poor	suspected	2003-2029
Rate of change over the past 10 years/3 generations (longer of the two periods)	20-29%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	20-29%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	20-29%	-	-	-
Generation length	8.5 years	-	-	-

Population justification: The population size of this species has not been quantified; it is considered uncommon to common throughout its range.

Trend justification: Data on population trends are lacking, but a moderately rapid decline is suspected to be taking place as a result of forest loss and degradation throughout the species's range.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Brunei	extant	native		yes
Indonesia	extant	native		yes
Malaysia	extant	native		yes
Singapore	extinct	uncertain		yes
Thailand	extant	native		yes

Country/Territory	IBA Name
Malaysia	Nakawan Range
Malaysia	Ulu Muda
Malaysia	Bintang Range
Malaysia	Belum-Temenggor
Malaysia	Kledang Range
Malaysia	Central Titiwangsa Range
Malaysia	Selangor Heritage Park
Malaysia	Endau-Rompin
Malaysia	Panti forest
Malaysia	Krau Wildlife Reserve
Malaysia	Taman Negara National Park
Malaysia	South-east Pahang peat swamp forest
Malaysia	Mount Kinabalu
Malaysia	Danum Valley Conservation Area
Malaysia	Maliau Basin Conservation Area
Malaysia	Tawau Hills Park
Malaysia	Tabin Wildlife Reserve
Malaysia	Lanjak Entimau Wildlife Sanctuary
Malaysia	Danum-Linau
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	Hala Sector, Hala-Bala Wildlife Sanctuary and Bang Lang National Park
Thailand	Khao Banthad
Thailand	Khao Nor Chuchi
Thailand	Thaleban

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Plantations	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	major	resident
Forest	Subtropical/Tropical Swamp	suitable	resident
Altitude	200 - 750 m	Occasional altitudinal limits	(max) 950 m

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	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Species disturbance, Species mortality
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, Ecosystem conversion
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		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion

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: Psilopogon henricii. Downloaded from http://datazone.birdlife.org/species/factsheet/yellow-crowned-barbet-psilopogon-henricii on 29/11/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 29/11/2023.