Point Cloates, west Australia.
Until recently considered conspecific with T. chlororhynchos; genetic distance slight#R, but differs in its much-reduced blackish triangular patch in front of and around eye (2); paler grey face and ear-coverts (1); white cap extending to hindcrown vs mid-crown (2); yellow line atop bill tapering to point vs broadening and rounded at base#R#R (ns); shorter wing (based on published data#R, effect size −1.26, score 1) but longer bill (0.97, score 1). This form previously listed as race bassi, while carteri was considered a synonym of chlororhynchos; but examination of specimens revealed that bassi and carteri were referable to the same taxon, for which latter name has priority#R. Monotypic.
S Indian Ocean, breeding on Prince Edward, Crozet, Kerguelen, Amsterdam and St Paul Is.
Food and feeding
Status and conservation
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