Belongs to the large species-group centred on P. purpuratus (which see), forming part of the subgroup centred on that same species. Taxonomy somewhat confused: has often been considered a race of P. purpuratus, along with P. chalcurus, whereas other arrangements have considered P. chalcurus and P. chrysogaster to be races of present species; for separation from P. chalcurus see that species. Monotypic.
Tuamotu Archipelago (except Makatea).
Food and feeding
Status and conservation
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