Terry Whittaker / Grey heron ( Ardea cinerea) flying to bin. Herons congregate around the fish stalls as city markets are closing, picking up scraps of food. Amsterdam, Netherlands. April.

Frederique Olivier / Pair of Blue footed boobies (Sula nebouxii) courting, with the male picking up and offering grass, Isla Lobos de Terra, Peru.

Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) biologist, Ben Pearl, picking up chick from mud flat in salt pond, Eden Landing Ecological Reserve, Union City, Bay Area, California

Bence Mate / Great egret (Ardea alba) hunting fish, Lake Csaj, Pusztaszer, Hungary, February. Winner of the Portfolio category of the Terre Sauvage Nature Images Awards competition 2015.

Tony Heald / Asian elephant (Elephas maximus) domesticated elephant working, picking reeds, Kaziranga National Park, Assam, India, March 2009.

Pete Oxford / Tea picker, collecting Tea leaves (Camelia sinensis) wearing large straw hat, Assam, North East India, October 2014.

Cyril Ruoso / African elephant (Loxodonta africana) hanging upside down, during translocation by Kenya Wildlife Service, due to over population, Mwaluganje Reserve, Kenya. October 2006.

Espen Bergersen / Gyrfalcon (Falco rusticolus) flying with guillemot prey. Hornoya bird cliff. Finnmark, Norway. March

Chris & Monique Fallows / Orca male (Orcinus orca) raising pectoral flipper out of the water, Prince William Sound, Alaska, USA.

Chris Mattison,Chris Mattison / Rubber Boa (Charina bottae) in defensive posture, raising tail to mimic head. California, USA, November.

Cyril Ruoso / Mandrill (Mandrillus sphinx) close-up portrait of an adult male picking his nose, Gabon

Anup Shah / Spotted hyena (Crocuta crocuta) preparing to carry a pup aged 2-3 months. Masai Mara National Reserve, Kenya, July