breeds in the Snares Islands (3 km2
), New Zealand
. The population was estimated at 23,250 breeding pairs in 1985-1986; 19,000 on North-East Island, 3,500 on Broughton and 750 on the Western Chain islets. In 2002, 25,861 pairs were counted on North-East Island and 4,000 on Broughton8
. This indicates that the population is perhaps increasing. However, a more recent estimate in 2008 placed the population at 26,000 breeding pairs. This may represent a population decline, although in the absence of any major threat it may represent a natural fluctuation9
. Its wintering range is largely unknown, although occasional records from the waters off Tasmania and South Australia suggest a movement towards Australia4
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