Sven Zacek / Roe deer (Capreolus capreolus) young buck, portrait. Karula National Park, Valgamaa, Southern Estonia. June.

Claudio Contreras / Young girl face to face with Peninsular Pronghorn Antelope (Antilocapra americana peninsularis) fawn at Peninsular Pronghorn recovery project, El Vizcaino Desert Biosphere Reserve, Baja California Pen...

Gerrit Vyn / Pronghorns (Antilocapra americana) crawling under fence in snow during migration, Sublette County, Wyoming, USA. March.

Sven Zacek / Roe deer (capreolus capreolus) buck with velvet antlers and fawn, Tartumaa, Estonia, March.

Sven Zacek / Roe deer (Capreolus capreolus) buck with velvet antlers and fawn at sunset, Tartumaa, March 2013.

Sven Zacek / Roe deer (Capreolus capreolus) buck with velvet antlers in snowy field at sunset, Tartumaa, Estonia, March.

Sven Zacek / Four Roe deer (Capreolus capreolus) bucks with velvet antlers and the shadow of a fifth buck, Tartumaa, Estonia, March.

Sven Zacek / Roe deer (capreolus capreolus) buck portrait, with velvet antlers. Tartumaa, Estonia, March.

George Sanker / Pronghorn (Antilocapra americana) male, Yellowstone National Park, Wyoming, USA, June.

Sven Zacek / Roe deer (Capreolus capreolus) buck in snowy field, Vesneri, southern Estonia, March. Winner of the Animal stories portfolio in the Melvita Nature Images Awards competition 2014.

Sven Zacek / Roe deer (Capreolus capreolus) buck, Vesneri, Estonia, March. Winner of the Animal stories portfolio in the Melvita Nature Images Awards competition 2014.

Sven Zacek / Roe deer (Capreolus capreolus) buck with does, Vesneri, Estonia, March. Winner of the Animal stories portfolio in the Melvita Nature Images Awards competition 2014.

Sven Zacek / Roe deer (Capreolus capreolus) buck and doe interacting, Vesneri, Estonia, March. Winner of the Animal stories portfolio in the Melvita Nature Images Awards competition 2014.

Sam Hobson / Fallow deer (Dama dama) buck crossing road under street lights. London, UK. January.

Angelo Gandolfi / Pampas deer (Ozotoceros bezoarticus) buck in velvet standing by flowering tree, Pantanal, Brazil

Wild Wonders of Europe / Widstrand / Fallow deer (Dama dama) male, Studen Kladenets reserve, Eastern Rhodope Mountains, Bulgaria, May 2013.

Sven Zacek,Sven Zacek / Roe deer buck (Capreolus capreolus) in field sniffing air, Southern Estonia, May

Shattil & Rozinski,Shattil & Rozinski / Mule deer (Odocoileus hemionus), with the Denver skyline and Rocky Mountains in the background, Denver, Colorado, USA, November.

David Tipling / Brown Hare (Lepus europaeus) buck chasing doe, in late evening, Norfolk, May

Andy Rouse / Roe deer (Capreolus capreolus) buck in cereal field, UK June

Fergus Gill / 2020VISION / Roe Deer (Capreolus capreolus) buck in a woodland field. Perthshire, Scotland, June.

Laurie Campbell / Roe deer (Capreolus capreolus) buck / male in summer coat, Strathspey, Cairngorms National Park, Scotland, July

Bertie Gregory / 2020VISION / Roe deer (Capreolus capreolus) buck silhouetted at twilight, with church spire, Berkshire, England, UK, November. Did you know? In the original book 'Bambi' was a Roe deer, however in the later anima...

Mark Hamblin / 2020VISION / Roe deer (Capreolus capreolus) buck in a meadow in summer, Cairngorms NP, Scotland, UK, August 2010

Mark Hamblin / 2020VISION / Portrait of a male Roe deer (Capreolus capreolus) in a meadow, Cairngorms NP, Scotland, UK, August 2010

Sven Zacek / Roe Deer (Capreolus capreolus) buck portrait with developing antlers in velvet. Estonia, Europe, March.

Fabrice Cahez / Portrait of a Roe Deer (Capreolus capreolus) buck in dawn light. Vosges, France, July.

John Waters / Hand reared Whooper Swans (Cygnus cygnus) in flight. Birds imprinted and trained by Lloyd and Rose Buck for filming purposes. Somerset, UK, January 2011

John Waters / Hand reared Whooper Swan (Cygnus cygnus) in flight against blue sky. Birds imprinted and trained by Lloyd and Rose Buck for filming purposes. Somerset, UK, January 2011

John Waters / Hand-reared Whooper Swans (Cygnus cygnus) being trained to fly alongside a car at Weson airfield by Lloyd and Rose Buck for filming purposes. Somerset, UK, January 2011.

Danny Green / 2020VISION / Fallow deer (Dama dama) buck running, Bradgate Park, Leicestershire, England, UK, October

Fergus Gill / Roe deer (Capreolus capreolus) buck feeding in a field at dusk. Perthshire, Scotland, August .

Bence Mate / Portrait of Roe deer buck (Capreolus capreolus) in woodland, Pusztaszer, Kiskunsagi National Park, Hungary

Wild Wonders of Europe / Hamblin / Roe deer (Capreolus capreolus) buck in wet meadow at dawn, Nemunas Delta, Lithuania, June 2009

Wild Wonders of Europe / Hamblin / Roe deer (Capreolus capreolus) buck in wet meadow, Nemunas Regional Park, Lithuania, June 2009

Wild Wonders of Europe / Möllers / Fallow deer (Dama dama) buck in wood, framed by two trees, Klampenborg Dyrehaven, Denmark, October 2008

Wild Wonders of Europe / Möllers / Fallow deer (Dama dama) buck with a groups of does, Klampenborg Dyrehaven, Denmark, October 2008

Wild Wonders of Europe / Möllers / Fallow deer (Dama dama) buck, Klampenborg Dyrehaven, Denmark, October 2008

Wild Wonders of Europe / Möllers / Fallow deer (Dama dama) buck sniffing branch, Klampenborg Dyrehaven, Denmark, October 2008

Wild Wonders of Europe / Möllers / Fallow deer (Dama dama) buck running, Klampenborg Dyrehaven, Denmark, October 2008

Shattil & Rozinski / Mule deer (Odocoileus hemionus) buck, Cherry Creek State Park, Denver, Colorado, USA

Andy Rouse / Roe deer (Capreolus capreolus) buck chasing female during rut, Wiltshire, UK (non-ex)

Andy Rouse / Roe deer (Capreolus capreolus) buck in poppy field during rut, Wiltshire, UK

Andy Rouse / Roe deer (Capreolus capreolus) buck, portrait, UK

Andy Rouse / Roe deer (Capreolus capreolus) buck with antlers in velvet, UK

Laurent Geslin / Roe deer (Capreolus capreolus) buck, Essex, England

David Kjaer / Fallow Deer (Dama dama) young buck and male running during autumn 'rut' in Richmond Park, London, England

Rolf Nussbaumer / White tailed deer {Odocoileus virginianus} buck portrait, Welder Wildlife Refuge, Sinton, Texas, USA.