Belongs to the large species-group centred on P. purpuratus (which see); within this, forms part of a subgroup that also includes P. pelewensis, P. richardsii, P. roseicapilla, P. ponapensis, P. hernsheimi, P. greyi and P. fasciatus. In recent treatments, has been considered conspecific with P. ponapensis, P. hernsheimi and P. fasciatus, but all four taxa are distinctive enough to be regarded as full species. Differs from P. ponapensis in having black blurry bar on mid-belly with mid-green upper belly patch vs broad brown-tinged black blurry patch covering same area (2); more yellow on lower belly patch (2); green-tipped grey vs yellowish-white terminal tailbar (2); greyer, less yellow-shot breast, mantle and hindcrown (ns); slightly longer wing (effect size 1.155, score 1). Differs from P. hernsheimi in having blurry black bar on mid-belly (2); more yellow on lower belly patch (1); green-tipped grey vs bright yellow terminal tailbar (3); larger size (effect size for bill 3.94, score 2). Differs from P. fasciatus in having no dull rust-brown upper belly patch (3); no rust tinge to grass-green upper belly and clear pale yellow undertail (2); grey- vs yellowish-tipped tail (2); more yellow on lower belly patch (ns); strong emerald-green subterminal tips of tertials (ns); longer bill (effect size 1.205, score 1). Polytypic P. porphyraceus sometimes considered conspecific with P. pelewensis. Proposed race graeffei (Wallis and Futuna) and birds on Niuafo’ou (N Tonga) are probably hybrid populations of present species × P. fasciatus. Monotypic.
Small islands of Fiji (Vatulele, Makogai, Wakaya, Yadua, Lau group), Tonga and Niue. Also Wallis and Futuna, and Niuafo’ou (Tonga), where populations are probably hybrid.
Food and feeding
Status and conservation
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