Hummingbirds (Trochilidae)

White-sided Hillstar (Oreotrochilus leucopleurus) - HBW 5, p. 624

French: Colibri à flancs blancs German: Weißflanken-Andenkolibri Spanish: Colibrí Cordillerano

Taxonomy: Oreotrochilus leucopleurus Gould, 1847, Chilean Cordilleras.
Forms a superspecies with O. estella, O. chimborazo and O. stolzmanni, and all four have been considered conspecific, but separated largely on morphological grounds; O. estella overlaps slightly with present species, and some hybridization reported, in spite of which present species is the form least frequently lumped into O. estella. Monotypic.

Distribution: S Bolivia (Tarija) S through Andes to SC Chile (Bío-Bío) and S Argentina (WC Santa Cruz).

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