• 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
2020	Near Threatened	C2a(i)
2018	Near Threatened	C2a(i)
2016	Near Threatened	B1ab(i,ii,iii,iv,v);C1+2a(i)
2012	Near Threatened	B1ab(i,ii,iii,iv,v);C1+2a(i)
2008	Near Threatened	A2c; A3c; A4c; B1a+b(i,ii,iii,iv,v)
2004	Near Threatened
2000	Lower Risk/Near Threatened
1994	Lower Risk/Near Threatened
1988	Near Threatened

Migratory status	not a migrant	Forest dependency	medium
Land-mass type	continent	Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	102,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	2500-9999 mature individuals	medium	estimated	2007
Population trend	decreasing	-	suspected	2014-2024
Rate of change over the past 10 years/3 generations (longer of the two periods)	1-19%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	1-19%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	1-19%	-	-	-
Generation length	2.98 years	-	-	-

Population justification: The population estimate for Costa Rican Important Bird Areas is 2,500-3,900 mature individuals (J. Criado et al. in litt. 2007; Sánchez et al. 2009), implying that there are fewer than 10,000 mature individuals in total, thus the population is placed in the band for 2,500-9,999 mature individuals, probably equivalent to a total population of 3,700-15,000 individuals. The population structure is unknown, but it is tentatively assumed that the species forms several small, disjunct subpopulations (see eBird 2020).

Trend justification: A slow to moderate population decline is suspected based on rates of habitat loss within the species's range.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Colombia	extant	native	yes
Costa Rica	extant	native	yes
Panama	extant	native	yes

Country/Territory	IBA Name
Costa Rica	Arenal-Monteverde
Costa Rica	Central Volcanic Cordillera
Costa Rica	La Amistad Caribe
Costa Rica	Tilarán Highlands
Panama	Cerro Santiago
Panama	Chagres National Park
Panama	Fortuna Forest Reserve
Panama	General de División Omar Torrijos Herrera National Park
Panama	La Amistad International Park
Panama	Narganá Wildlands Area
Panama	Palo Seco Protection Forest
Panama	Portobelo National Park
Panama	Santa Fé National Park

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	300 - 1500 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
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
Natural system modifications	Fire & fire suppression - Increase in fire frequency/intensity	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion

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Recommended citation
BirdLife International (2024) Species factsheet: Blue-and-gold Tanager Bangsia arcaei. Downloaded from https://datazone.birdlife.org/species/factsheet/blue-and-gold-tanager-bangsia-arcaei 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.