Often considered conspecific with E. sapphiropygia, and intermediate specimens exist, but morphological differences support treatment as separate species. Described form E. soderstromi is regarded by some authors as a hybrid of present species and E. nigrivestis, or a race or aberrant form of E. godini. Form E. isaacsonii, known only from three Bogotá trade skins which are not identical, may be a hybrid of Eriocnemis (of undetermined species) × Heliangelus. Three subspecies recognized.
Food and feeding
Status and conservation
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