P. P. King, 1831,
Juan Fernández Islands.
Sister-species relationship with S. sephaniodes supported by recent DNA studies; in the past, phylogenetic affinities with other hummingbird species have been much disputed. In mid-19th century, pronounced sexual dimorphism resulted in sexes being classified as two different species within same genus, until observations of mating and of the two morphotypes sharing nest revealed their true identities. Position of proposed form †leyboldi is a mystery; originally considered a separate species, supposedly from Alejandro Selkirk I (Juan Fernández Is), but there is no evidence that this species ever occurred on Alejandro Selkirk#R. Treated as monotypic.
Robinson Crusoe I, in Juan Fernández Is (off WC Chile).
Food and feeding
Status and conservation
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