is confined to Macquarie Island and nearby Bishop and Clerk Islands, Australia
. However, small numbers of similar-looking birds appear at other sub-Antarctic islands, indicating that it may breed elsewhere. It was heavily exploited in the 19th century, but has recovered and, in 1984-1985, an estimated 850,000 pairs were breeding on Macquarie, with an earlier count of over 1,000 pairs on Bishop and Clerk. The population is believed to be stable.
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