The only Australian breeding population, on Macquarie I., was thought extinct, and though it may be in the process of recolonisation, it certainly contains fewer than 50 individuals (so could be Critically Endangered: D). Attempts at recolonisation imply genetic exchange, so the Australian status is downgraded to Endangered: D (as per Gärdenfors et al., 1999). The population visiting Australian waters is probably decreasing as a result of fishing bycatch and is classified as Near Threatened: c. Near Threatened: c suggests recolonisation by birds from other colonies, or undetected persistence of a small breeding population. Breeding confirmed in May 2000, when 8 eggs and 4 young found (G. Copson). Breeding colony on Cochon I. in the Crozet Is extinct (Jouventin et al., 1984, Marchant and Higgins, 1990). Otherwise, distribution as above
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