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

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.

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	medium
Land mass type	land-mass type - continent land-mass type - shelf island	Average mass	-

	Estimate	Data quality
Extent of Occurrence breeding/resident (km2)	2,910,000	medium
Number of locations		-
Severely Fragmented		-

	Value	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		-	-	-
Percentage in largest subpopulation		-	-	-

Population justification: The global population size has not been quantified, but the species is described as uncommon in Thailand and the lowlands of Borneo, and rare in Sumatra (Cheke et al. 2001).

Trend justification: Rates of forest loss in the Sundaic lowlands have been extremely rapid (Kalimantan lost nearly 25% of its evergreen forest during 1985-1997, and Sumatra lost almost 30% of its 1985 cover), because of a variety of factors, including the escalation of logging and land conversion, with deliberate targeting of all remaining stands of valuable timber including those inside protected areas, plus forest fires (particularly in 1997-1998). However, this species is thought to have avoided rapid declines because it can adapt to secondary habitats, thus it is suspected to be experiencing a moderately rapid decline overall.

Country/Territory	Presence	Origin	Resident	Breeding	Non-breeding	Passage
Brunei	extant	native		yes
Indonesia	extant	native		yes
Malaysia	extant	native		yes
Thailand	extant	native		yes

Country/Territory	IBA Name
Malaysia	Bako-Buntal Bay
Malaysia	Bintang Range
Malaysia	Central Titiwangsa Range
Malaysia	Danum-Linau
Malaysia	Endau-Rompin
Malaysia	Gunung Pueh
Malaysia	Kabili-Sepilok
Malaysia	Klias peninsula
Malaysia	Krau Wildlife Reserve
Malaysia	Lambir Hills National Park
Malaysia	Lanjak Entimau Wildlife Sanctuary
Malaysia	Maliau Basin Conservation Area
Malaysia	Mulu - Buda Protected Area
Malaysia	Niah National Park
Malaysia	Panti forest
Malaysia	Selangor Heritage Park
Malaysia	Similajau National Park
Malaysia	South-east Pahang peat swamp forest
Malaysia	Taman Negara National Park
Malaysia	Tanjung Datu-Samunsam Protected Area
Thailand	Bala Sector, Hala-Bala Wildlife Sanctuary
Thailand	Chaloem Pra Kiet (Pa Phru to Daeng)
Thailand	Khao Nor Chuchi

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Rural Gardens	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Forest	Subtropical/Tropical Swamp	suitable	resident
Altitude	0 - 1280 m	Occasional altitudinal limits

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		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		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, Ecosystem conversion
Biological resource use	Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation
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

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Recommended citation
BirdLife International (2023) Species factsheet: Prionochilus thoracicus. Downloaded from http://datazone.birdlife.org/species/factsheet/scarlet-breasted-flowerpecker-prionochilus-thoracicus on 04/06/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 04/06/2023.