Titi flock above a colony of Snares crested penguins at Boat Harbour, subantarctic Snares Islands. Each evening, some three million sooty shearwaters, or titi, return to their burrows on the Snares after feeding trips that can take them to the edge of the Antarctic sea ice.

Greenpeace has been documenting the extraordinary wildlife of the Auckland and Snare Islands, World Heritage areas, to show what is at risk if planned deep sea oil drilling goes ahead.