• 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. 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.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	B1ab(i,ii,iii)+2ab(i,ii,iii)

Red List history

Year	Category	Criteria
2020	Vulnerable	B1ab(i,ii,iii)+2ab(i,ii,iii)
2016	Endangered	C2a(ii)
2012	Endangered	C2a(ii)
2008	Endangered	B1a+b(i,ii,iii,v); C2a(ii)
2006	Critically Endangered
2004	Vulnerable
2000	Vulnerable
1996	Vulnerable
1994	Vulnerable
1988	Threatened

Migratory status	not a migrant	Forest dependency	does not normally occur in forest
Land-mass type	continent	Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	1,100 km2	medium
Number of locations	6-10	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	1000-2499 mature individuals	poor	estimated	2020
Population trend	decreasing	poor	suspected	2014-2024
Rate of change over the past 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Generation length	2.4 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: The population is estimated to be small, as the species is only known from c. 180 km² of habitat. It is placed in the band 1,000-2,499 mature individuals, equating to 1,500-3,749 individuals in total, rounded here to 1,500-4,000 individuals.

Trend justification: This species is suspected to be undergoing a slow to moderate decline, owing to continuing habitat degradation within its range. Tree cover within the range has been lost at a rate of c. 8% over the past ten years (Global Forest Watch 2020). Apart from woodland, the species is also found in open shrub and may tolerate a low level of habitat degradation (Schuchmann et al. 2020); therefore, population declines are potentially lower than the rate of tree cover loss. Overall, the rate of population decline is unlikely to exceed 10% over ten years.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Peru	extant	native	yes

Country/Territory	IBA Name
Peru	El Molino

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Shrubland	Subtropical/Tropical High Altitude	major	resident
Altitude	2900 - 3500 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Unknown		Unknown
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Small-holder grazing, ranching or farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Unknown		Unknown
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Wood & pulp plantations - Scale Unknown/Unrecorded	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Unknown		Unknown
		Stresses Ecosystem degradation, Ecosystem conversion
Climate change & severe weather	Habitat shifting & alteration	Timing		Scope		Severity		Impact
		Future		Whole (>90%)		Unknown		Unknown
		Stresses Indirect ecosystem effects, Ecosystem degradation

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Recommended citation
BirdLife International (2024) Species factsheet: Purple-backed Sunbeam Aglaeactis aliciae. Downloaded from https://datazone.birdlife.org/species/factsheet/purple-backed-sunbeam-aglaeactis-aliciae on 26/11/2024.
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 26/11/2024.