Brent Stephenson / Australasian gannet (Morus serrator) flying with waves breaking below, Muriwai, Auckland, New Zealand, October.

Claudio Contreras / Hawksbill turtle (Eretmochelys imbricata) swimming, viewed from below, Cozumel Reefs National Park, Cozumel Island, Yucatan Peninsula, Mexico, February

Andy Rouse / Great egret (Ardea alba) flying across lake, Ranthambhore National Park, India

Ernie Janes / Fulmar (Fulmaris glacialis) in flight with Hunstanton, Norfolk, England, UK, February.

Ole Jorgen Liodden / Campbell albatross (Thalassarche impavida) in flight, silhouetted at sunset, near Campbell Islands, Sub-Antarctic New Zealand. February.

Ole Jorgen Liodden / Nazca booby (Sula granti) in flight with rainbow behind, Galapagos.

Chris & Monique Fallows / Wandering albatross (Diomedea exulans) flying off coast of South Georgia Island.

Ole Jorgen Liodden / Arctic tern (Sterna Paradisaea) flying, Svalbard, Norway, July.

Markus Varesvuo / Steller's Eagle (Haliaeteus pelagicus) flying, with black background, Hokkaido, Japan, February

Alan Williams / Domestic pigeons (Columba livia) flock in flight over houses, Cheshire, UK, June.

David Pattyn / Alpine chough (Pyrrhocorax graculus) in flight. Stelvio National Park, Italian Alps, Solda, Sulden am Ortler, Sudtirol, Italy. January 2013.

Loic Poidevin / Barn swallow (Hirundo rustica) flying low over the ground, Indre-et-Loire , France, June.