Eriocnemis isabellae 

Scope: Global
Language: English

Translate page into:

Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Caprimulgiformes Trochilidae

Scientific Name: Eriocnemis isabellae Cortés-Diago, Ortega, Mazariegos-Hurtado & Weller, 2007
Common Name(s):
English Gorgeted Puffleg
Taxonomic Source(s): SACC. 2005 and updates. A classification of the bird species of South America. Available at: #
Identification information: The male is blackish-green, with iridescent blue-green rump and blue-black tail, bluish-violet undertail, and white leg puffs, and differs from other Eriocnemis in having a bicoloured blue-violet and green gorget. Females are similar to E. nigrivestis and E. vestitus but underparts are more intensively fringed rufous with turquoise reflections on the belly centre (Cortés-Diago et al. 2007).

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2016
Date Assessed: 2016-10-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Contributor(s): Cortés, O. & Salaman, P.
Facilitator/Compiler(s): Sharpe, C J, Symes, A. & Ashpole, J
This recently described species qualifies as Critically Endangered because it is known from a single location and has an extremely small area of occupancy within which habitat quality is continuing to decline owing to conversion for agriculture (particularly coca cultivation).

Previously published Red List assessments:

Geographic Range [top]

Range Description:Eriocnemis isabellae has been recently described from Cauca Department, south-west Colombia, where it occurs in a tiny area of the Serranía del Pinche (Cortés-Diago et al. 2007). Three birds (one male and two females) were mist-netted in 2005 and a total of six further males were caught in 2006 (Cortés-Diago et al. 2007). The global population has not been quantified but is presumably very small given that the area of suitable habitat is thought to be less than 10 km2, and it is suspected to be decreasing as elfin forest habitat is converted for agriculture and illegal coca plantations.

Countries occurrence:
Additional data:
Estimated area of occupancy (AOO) - km2:9Continuing decline in area of occupancy (AOO):Unknown
Extreme fluctuations in area of occupancy (AOO):NoEstimated extent of occurrence (EOO) - km2:44
Continuing decline in extent of occurrence (EOO):UnknownExtreme fluctuations in extent of occurrence (EOO):No
Number of Locations:1Continuing decline in number of locations:Unknown
Extreme fluctuations in the number of locations:NoLower elevation limit (metres):2600
Upper elevation limit (metres):2900
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The population is presumably very small given that the area of suitable habitat is thought to be less than 10 km2. Based on known densities of the congeneric E. derbyi (20−90 birds per km2 [Cresswell et al. 1999]), it has been estimated at 900 individuals (Gallo-Cajiao and López-O. 2014, Fjeldså and Sharpe 2015).

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

Current Population Trend:Decreasing
Additional data:
Number of mature individuals:UnknownContinuing decline of mature individuals:Unknown
Extreme fluctuations:NoPopulation severely fragmented:No
Continuing decline in subpopulations:Unknown
Extreme fluctuations in subpopulations:NoAll individuals in one subpopulation:No

Habitat and Ecology [top]

Habitat and Ecology:It inhabits the cloud and temperate forest zone, within which the species appears to be associated with elfin forest on steep slopes along mountain ridges (Cortés-Diago et al. 2007). Elfin forest at the type locality averages 6-8 m in height with frequent natural clearings and is found at around 2,600-2,900 m (Cortés-Diago et al. 2007).

Continuing decline in area, extent and/or quality of habitat:Yes
Generation Length (years):4.2
Movement patterns:Not a Migrant

Threats [top]

Major Threat(s): The primary threat is the shifting of the agricultural border towards remaining primary forests, causing a loss of vegetation cover, contamination of watersheds and soil degradation (Cortés-Diago et al. 2007). Illegal coca cultivation is a major threat due to the lack of governmental presence, with 8.3 % of potentially suitable habitat reportedly damaged annually by coca cultivation. The potential completion of a road from El Estrecho in the Patía Valley to Guapi on the Pacific coast would hold serious implications for Serraníadel Pinche (Cortés-Diago et al. 2007).

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway
CITES Appendix II. Considered Critically Endangered at the national level in Colombia (Renjifo et al. 2014). There is an ongoing conservation plan involving local authorities, community leaders, Ministry of Environment, The Hummingbird Conservancy, Ecohabitats foundation and local residents. Serranía del Pinche has been legally designated as the 7256 ha Serranía del Pinche Protective Forest Reserve (Gallo-Cajiao and López-O. 2014).

Conservation Actions Proposed
Carry out further studies to determine status and population size. Develop a Species Action Plan. Continue and extend local conservation and education initiatives. Work towards the creation of a protected area in the Serranía del Pinche.

Citation: BirdLife International. 2016. Eriocnemis isabellae. The IUCN Red List of Threatened Species 2016: e.T22735457A95111728. . Downloaded on 27 May 2018.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided