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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).
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.
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).
Related state of the world's birds case studies
CortÃ©s-Diago, A.; Ortega, L. A.; Mazariegos-Hurtado, L.; Weller, A.-A. 2007. A new species of Eriocnemis (Trochilidae) from southwest Colombia. Ornitologia Neotropical 18(2): 161-170.
Text account compilers
Sharpe, C J, Symes, A.
Cortes, O., Salaman, P.
IUCN Red List evaluators
Butchart, S., Symes, A.
BirdLife International (2015) Species factsheet: Eriocnemis isabellae. Downloaded from http://www.birdlife.org on 06/03/2015. Recommended citation for factsheets for more than one species: BirdLife International (2015) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 06/03/2015.
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
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To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
Additional resources for this species
|Current IUCN Red List category||Critically Endangered|
|Species name author||Cortes-Diago et al., 2007|
|Population size||Unknown mature individuals|
|Distribution size (breeding/resident)||44 km2|
|Links to further information|
|- Additional Information on this species|