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Esmeraldas woodstar : ウィキペディア英語版 | Esmeraldas woodstar
The Esmeraldas woodstar, colibrí de Berlepsch, colibrí de esmeraldas, or estrellita Esmeraldeña (''Chaetocercus berlepschi'') is a species of hummingbird in the Trochilidae family. It is found only in Ecuador.〔Ridgely, R. S. and P. J. Greenfield. 2001. The birds of Ecuador. Cornell University Press, Ithaca, New York, USA.〕 Its natural habitat is subtropical or tropical moist lowland forests.〔Ágreda, A. E. 2007. Feeding ecology and conservation of Esmeraldas Woodstar Chaetocercus berlepschi in the Chongón-Colonche Hills, western Ecuador. Cotinga 27:38–41.〕 It is threatened by habitat loss.〔BirdLife International. 2008. Species factsheet: Chaetocercus berlepschi. BirdLife International, Cambridge, United Kingdom. www.birdlife.org/datazone/〕 Researchers recently found Esmeraldas woodstars at eleven new localities and collected the first female specimens of the species.〔Harris, J. B. C., A. Agreda, M. E. Juiña, and B. P. Freymann. 2009. Distribution, plumage, and conservation status of the endemic Esmeraldas Woodstar (''Chaetocercus berlepschi'') of western Ecuador. ''Wilson Journal of Ornithology'' 121:227-239. ()〕 ==References==
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