Northern gannet colony, Ile Bonaventure offshore of Perce, Quebec, Canada, North America

Australasian gannet (Morus serrator) courtship display at Cape Kidnappers, North Island, New Zealand, Pacific

Australasian gannet (Morus serrator) courtship display at Cape Kidnappers, North Island, New Zealand, Pacific

Imperial shags (Leucocarbo atriceps) in courtship display, Falkland Islands, South America

King penguins (aptenodytes patagonicus) st andrews bay, south georgia, two birds beak to beak

Adult waved albatross (Diomedea irrorata) at breeding colony on Espanola Island in the Galapagos Island Archipelago, Ecuador

Adult waved albatross (Diomedea irrorata) at breeding colony on Espanola Island in the Galapagos Island Archipelago, Ecuador

Two adult Emperor penguins and a baby chick nestling between them, Weddell Sea, Snow Hill Island, Antarctica