Adult Wilson's storm petrels, Oceanites oceanicus, feeding at the surface at Elephant Island, South Shetlands, Antarctica.

Adult Wilson's storm petrel, Oceanites oceanicus, feeding at the surface at Elephant Island, South Shetlands, Antarctica.

Adult Wilson's storm petrels (Oceanites oceanicus), surface feeding at Grytviken, South Georgia, Polar Regions

Adult Wilson's storm petrel (Oceanites oceanicus), surface feeding at Grytviken, South Georgia, Polar Regions

Wilson's storm-petrel (Oceanites oceanicus) daintily feeding in the calm waters of Neko Harbour on the Antarctic Peninsula

Wilson's storm-petrel (Oceanites oceanicus) daintily feeding in the calm waters of Neko Harbour on the Antarctic Peninsula

Wilson's storm-petrel (Oceanites oceanicus) daintily feeding in the calm waters of Neko Harbour on the Antarctic Peninsula

Wilson's storm-petrel (Oceanites oceanicus) daintily feeding in the calm waters of Neko Harbour on the Antarctic Peninsula

Adult Wilson's storm petrel (Oceanites oceanicus) feeding near a larger cape petrel after an iceberg calved near Port Lockroy, near the Antarctic Peninsula

Adult Wilson's storm petrel (Oceanites oceanicus) on the wing and feeding after an iceberg calved near Port Lockroy, near the Antarctic Peninsula

Adult Wilson's storm petrel (Oceanites oceanicus) feeding after Iceberg calved near Port Lockroy, near the Antarctic Peninsula