Yellow Crowned Night Heron (Nyctanassa Violacea), wading bird of the Americas that feeds on crustacea, Bermuda, Atlantic

Adult black-legged kittiwakes (Rissa tridactyla) on ice in the Svalbard Archipelago, Barents Sea, Norway

A mother polar bear (Ursus maritimus), and cub of the year feeding on a fin whale carcass in Holmabukta in the Svalbard Archipelago, Norway

Antarctic tern (Sterna vittata), feeding in the Enterprise Islands, Antarctica, Southern Ocean, Polar Regions

Black-legged kittiwake (Rissa tridactyla) feeding on small fish in Tracy Arm, Southeast Alaska, United States of America, North America

An injured bull California sea lion (Zalophus californianus), hauled out on Isla San Pedro Martir, Sea of Cortez, Mexico, North America

Goosander & Gulls fighting for food on the Lake leman

Kittiwake on cliff, British Isles

Fight. Seagull (Larus sp) facing Hooded Crow (Corvus cornix). Slovakia

Kittiwakes at nest and Guillemots on cliff, British Isles

Kittiwakes on cliff, British Isles

Kittiwake and nestlings, British Isles

Colony of Black Guillemots (Uria aalge) and Black-legged Kittiwakes (Rissa tridactyla), on the cliff of Troup Head, Scotland

Black-headed gull in flight, Pont de Gau France

Goosanders & Gulls fighting for food on the Lake leman

Black-headed Gull (Chroicocephalus ridibundus) fishing in the light of the setting sun, Slovakia