Brent Stephenson / Grey-backed storm-petrel (Garrodia nereis) feeding from the surface of the water. Kaikoura, Canterbury, New Zealand, October.

Brent Stephenson / Grey-backed storm-petrel (Garrodia nereis) in flight bouncing off the water with its long legs. View from behind. Kaikoura, Canterbury, New Zealand, October.

Brent Stephenson / Grey-backed storm-petrel (Garrodia nereis) resting on land. Tuku Valley, Chatham Islands, New Zealand, November.

Brent Stephenson / Grey-backed storm-petrel (Garrodia nereis) hovers above the water whilst it feeds. Kaikoura, Canterbury, New Zealand, October.

Brent Stephenson / Grey-backed Storm-petrel (Garrodia nereis) feeding by pattering along the surface. Off Kaikoura, Canterbury, New Zealand, October.