Gerrit Vyn / Red-legged kittiwake (Rissa brevirostris) on a nest. St. George Island, Alaska. July.

Graham Eaton / Red-legged Kittiwake (Rissa brevirostris) on sea. Alaska, USA. June.

Ole Jorgen Liodden / Red-legged kittiwake (Rissa brevirostris) on cliff with guano, Commander Island, Russia. September. Vulnerable species.

Jacob S. Spendelow / Red-legged Kittiwake (Rissa brevirostris), Alaska

Oriol Alamany / Red-legged kittiwakes (Rissa brevirostris) on rock, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-legged kittiwake (Rissa brevirostris) landing on cliff, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-legged kittiwake (Rissa brevirostris) in flight, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-legged kittiwakes (Rissa brevirostris) nesting on cliff, Saint George Island, Pribilof Islands, Alaska, USA

Matthias Breiter / Red-legged Kittiwake (Rissa brevirostris) nesting on cliff, Pribilof Islands, Alaska

Matthias Breiter / Red-legged Kittiwake (Rissa brevirostris) carrying nesting material, Pribilof Islands, Alaska

Michio Hoshino / Red-legged Kittiwake (Rissa brevirostris) group perched on nesting cliffs, Alaska

DAVID TIPLING / Red-legged kittiwake {Rissa brevirostris} St Paul Is, Bering Sea, Alaska, USA. Vulnerable