Krijn Trimbos / Great crested grebe (Podiceps cristatus) pair in courtship display, The Netherlands. March.

Ole Jorgen Liodden / Landscape of Lillehooksbreen glacier at Svalbard, Norway, July 2008.

Tui De Roy / Adelie penguin (Pygoscelis adeliae) courtship behaviour. Prydz Bay, near Davis Station, Vestfold Hills, Ingrid Christensen Coast, East Antarctica, November.

Chris & Monique Fallows / Wandering albatross (Diomedea exulans), engaged in mating display. South Georgia Island, Southern Ocean.

Nick Garbutt / Male Southern Lapwings (Vanellus chilensis) displaying in grasslands, Chapada dos Guimaraes, Brazil, South America.

Denis-Huot / Three Lesser flamingos (Phoeniconaias minor) silhouetted in front of geyser, Lake Bogoria National Reserve, Kenya.

Pascal Kobeh / Female humpback whale (Megaptera novaeangliae) with its very young calf at the surface, Rurutu island, Australs Archipelago, French Polynesia. Pacific Ocean.

Ernie Janes / Swallow (Hirundo rustica) adult perched on swallow weather vane, England, UK, June.

Cheryl-Samantha Owen / SANCCOB Hands Across the Sand event, in strong wind, to raise awareness for seabird and marine conservation, with 'Rocky' the Southern rockhopper penguin (Eudyptes chrysocome) on the beach. Table Bay,...

Pedro Narra / Bottlenose Dolphin (Tursiops truncatus) family swimming near the surface, Sado Estuary, Portugal

Richard Du Toit / Aerial photograph of Southern Right Whale (Eubalaena australis) with white calf, near Cape Agulhas, South Africa, Southern Right Western Cape Province, Indian Ocean, August

Ernie Janes,Ernie Janes / Newly hatched ducklings with eggs.