He is believed to have come from a breeding colony in the sub-Antarctic Macquarie Island.

BBC: Lost Antarctic Royal penguin found in New Zealand

The New Zealand Sub-Antarctic Islands consist of five island groups (the Snares, Bounty Islands, Antipodes Islands, Auckland Islands and Campbell Island) in the Southern Ocean south-east of New Zealand.

UNESCO: Culture

This research could help scientists find out more about possible life in Lake Vostok, the largest of over 70 sub-glacial lakes on the White Continent, which lies more than four km beneath the East Antarctic Ice Sheet.

BBC: Antarctic lake's secret water