• 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(ii,iii,v)+2ab(ii,iii,v)	B1ab(ii,iii,v)+2ab(ii,iii,v)	B1ab(ii,iii,v)+2ab(ii,iii,v); D1

Red List history

Year	Category	Criteria
2018	Critically Endangered	B1ab(ii,iii,v)+2ab(ii,iii,v)
2016	Critically Endangered	B1ab(iii)+2ab(iii)
2015	Critically Endangered	B1ab(iii)+2ab(iii)
2012	Critically Endangered	B1ab(iii)+2ab(iii)
2010	Critically Endangered	B1a+b(iii); B2a+b(iii)
2009	Critically Endangered	B1a+b(iii); B2a+b(iii)
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	44 km2	medium
Area of Occupancy (breeding/resident)	9 km2	good
Number of locations	1	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	250-999 mature individuals	poor	inferred	2014
Population trend	decreasing	poor	suspected	1997-2010
Generation length	4.2 years	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: The species has been described as fairly common (Gallo-Cajiao and López-O. 2014), but given that the area of suitable habitat is thought to be less than 10 km², the total population size is presumably very small. Based on known densities of the congeneric E. derbyi (20−90 birds per km² [Cresswell et al. 1999]), it has been estimated at up to 900 individuals (Gallo-Cajiao and López-O. 2014, Fjeldså and Sharpe 2015), which roughly equates to 600 mature individuals, placed here in the band 250-999 mature individuals.

Trend justification: The population is suspected to be decreasing owing to habitat loss and degradation, however the rate of decline has not been quantified.

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

Country/Territory	IBA Name
Colombia	Serranía del Pinche

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	2600 - 2900 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
Transportation & service corridors	Roads & railroads	Timing		Scope		Severity		Impact
		Future		Majority (50-90%)		Rapid Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion

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Recommended citation
BirdLife International (2024) Species factsheet: Gorgeted Puffleg Eriocnemis isabellae. Downloaded from https://datazone.birdlife.org/species/factsheet/gorgeted-puffleg-eriocnemis-isabellae on 23/12/2024.
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 23/12/2024.