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any of several shearwaters, having a dark plumage with greyish underparts, esp the sooty shearwater ( Puffinus griseus ) of New Zealand, which is collected for food by Māoris. It inhabits the Pacific Ocean and in summer nests in Australia and New Zealand

any of various petrels esp the short tailed shearwater, Puffinus tenuirostris , which inhabits the Pacific Ocean and in summer nests in S Australia