J. F. Gmelin, 1789,
Sometimes considered to include D. aurorae as a subspecies; these two are close relatives, and related also to D. oceanica and perhaps D. galeata. Proposed races tarrali (Vanuatu), intensitincta (Fiji) and microcera (Samoa) all considered to represent individual variation, and synonymized with nominate. Two subspecies recognized.
Food and feeding
Status and conservation
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