SimilarChaetocercus, Little woodstar, White‑tailed hummingbird, Hummingbird, Rufous‑shafted woodstar
Beautiful and rare esmeraldas woodstar
The Esmeraldas woodstar, colibrí de Berlepsch, colibrí de esmeraldas, or estrellita Esmeraldeña (Chaetocercus berlepschi) is a species of hummingbird in the family Trochilidae. It is found only in Ecuador. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss. Researchers recently found Esmeraldas woodstars at eleven new localities and collected the first female specimens of the species.