Distribution, Plumage, and Conservation Status of the Endemic Esmeraldas Woodstar (Chaetocercus berlepschi) of Western Ecuador
Harris, J. B. C., A. Ágreda, M. E. Juiña, and B. P. Freymann. 2009. Distribution, plumage, and conservation status of the endemic Esmeraldas Woodstar (Chaetocercus berlepschi) of western Ecuador. The Wilson Journal of Ornithology 121:227-239.
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