Richard Du Toit / Greater Double-collared Sunbird (Nectarinia afra) male on Pincushion (Leucospermum sp) flower, Western Cape, South Africa

Oscar Dewhurst / Mute swan (Cygnus olor), two cygnets sheltering under parent's wing. Richmond Park, London, England, UK. April.

Oscar Dewhurst / Mute swan (Cygnus olor) swimming with cygnets in misty lake in morning light. Richmond Park, London, England, UK. May.

Jack Dykinga / Greater roadrunner (Geococcyx californianus) running to feed brood with Lizard prey in beak. Catalina State Park, Sonoran Desert, Arizona, USA. June.

Oscar Dewhurst / Fallow deer (Dama dama) walking across frost-covered playing fields at dawn, with tower blocks of London in the background. Richmond Park, London, UK. December

Oscar Dewhurst / Red deer (Cervus elaphus) stag roaring, silhouetted under trees at sunrise. Bushy Park, London, UK. September

Matthew Maran / Red fox (Vulpes vulpes) dog interacting with a vixen in an urban garden. North London, UK. June.

Matthew Maran / Red fox (Vulpes vulpes) dog interacting with a vixen in an urban garden. North London, UK. July.

Matthew Maran / Red fox (Vulpes vulpes) carrying a large dead Brown rat (Rattus norvegicus) in an urban garden, North London, UK. August.

Matthew Maran / Red fox (Vulpes vulpes) cub defending its kill,a large Brown rat (Rattus norvegicus) from another cub, North London, UK. August. Highly commended in the Behaviour : Mammals Category of the Wildlife Ph...

Nick Upton / Close-up of a Meadow brown butterfly (Maniola jurtina) nectaring on a Greater knapweed flower (Centaurea scabiosa) in a chalk grassland meadow, Wiltshire, England, UK, June.

Nick Upton / Two Dark green fritillary butterflies (Argynnis aglaja) and a Narrow-bordered five-spot burnet moth (Zygaena lonicerae) nectaring on a Greater knapweed flower (Centaurea scabiosa) in a chalk grassland...

Nick Upton / Six-spot burnet moth (Zygaena filipendulae), Marbled white butterflies (Melanargia galathea) and a Dark green fritillary (Argynnis aglaja) nectaring on a clump of Greater knapweed flowers (Centaurea s...

Nick Upton / Marbled white butterflies (Melanargia galathea) nectaring on a clump of Greater knapweed flowers (Centaurea scabiosa) in a chalk grassland meadow, Wiltshire, England, UK, June.

Nick Upton / Marbled white butterflies (Melanargia galathea) nectaring on a clump of Greater knapweed flowers (Centaurea scabiosa) in a chalk grassland meadow, Wiltshire, England, UK, June.

John Shaw / Great frigatebird (Fregata minor) male at nest site, with gular sac inflated to attract females. Genovesa Island, Galapagos, May.

Francisco Marquez / Greater flamingo (Phoenicopterus ruber) juveniles and a few adults kept temporarily in an enclosure for ringing, Fuente de Piedra lagoon, Malaga, Spain. August.

Francisco Marquez / Greater flamingo (Phoenicopterus ruber) juveniles and a few adults kept temporarily in an enclosure for ringing, Fuente de Piedra lagoon, Malaga, Spain. August.

Francisco Marquez / Volunteers rounding up Greater flamingo (Phoenicopterus ruber) juveniles for ringing, Fuente de Piedra lagoon, Malaga, Spain. August.

Francisco Marquez / Greater flamingo (Phoenicopterus ruber) flock silhouetted in wetland, Fuente de Piedra lagoon, Malaga, Spain. August.

Oscar Dewhurst / Great bittern (Botaurus stellaris) in flight over water. London, UK. December.

Oscar Dewhurst / Red Fox (Vulpes vulpes) sitting on grass bank. London, UK. October

Oscar Dewhurst / Red Fox (Vulpes vulpes) watching prey through long grass. London, UK. November

Oscar Dewhurst / Red fox (Vulpes vulpes) sitting on a frozen lake at the edge of the reeds. London, UK. December.

Oscar Dewhurst / Red Fox (Vulpes vulpes) running through deep snow. London, UK. January

Oscar Dewhurst / Red Fox (Vulpes vulpes), hunting in the frost, London, UK. November

Oscar Dewhurst / Red Fox (Vulpes vulpes) scavenging for food in a rubbish skip. London, UK. November

Terry Whittaker / Mandarin duck (Aix galericulata) male female pair, Reddish Vale Country Park, Greater Manchester, UK. December

Terry Whittaker / Red fox (Vulpes vulpes), in urban garden, Manchester, UK. July

Marie Read / Sandhill cranes (Grus canadensis) (Florida race), adult with two small chicks crossing highway, Kissimmee, Florida, USA, March.

David Pattyn / Great Spotted Woodpecker (Dendrocopos major) adult male feeding young, Oisterwijk, The Netherlands, June

Matthew Maran / Red fox (Vulpes Vulpes) resting curled up close up, North London, England UK

Matthew Maran / Red Fox (Vulpes Vulpes) in allotment, North London, England UK

Matthew Maran / Red Fox (Vulpes Vulpes) in alotment, North London, England UK

Matthew Maran / Red Fox (Vulpes Vulpes) next to red fox graffiti art at night. North London, England UK

Matthew Maran / Red Fox (Vulpes Vulpes) outside houses, North London, England UK

Matthew Maran / Red Fox (Vulpes Vulpes) cubs play fighting North London, England, UK, June.

Matthew Maran / Red Fox (Vulpes Vulpes) on garden wall, North London, England UK

Matthew Maran / Red Fox (Vulpes Vulpes) at night, North London, England UK.

Matthew Maran / Red Fox (Vulpes Vulpes) patrolling the allotment North London, England, UK, September.

Russell Cooper / Mandarin duck drake (Aix galericulata) on the water, showing orange 'sail' feathers which are used when displaying, Southwest London, UK, March.

Russell Cooper / Mandarin duck drake (Aix galericulata) from behind flapping its wings. Southwest London, UK. February.

Markus Varesvuo / White-fronted goose (Anser albifrons) and Taiga bean goose (Anser fabalis rossicus) flocks in flight and on water. Latvia. April.

George Sanker / Greater yellowlegs (Tringa melanoleuca) standing on rock. Acadia National Park, Maine, USA. September.

Jack Dykinga / Greater roadrunner (Geococcyx californianus) with Desert spiny desert lizard (Sceloporus magister) prey, Catalina State Park, Arizona, Sonoran Desert, USA. August.

Terry Whittaker / Juvenile Red fox (Vulpes vulpes) interacting with and trying to play with an adult in an urban garden, Greater Manchester, UK, August. Filmed using a camera trap.

Terry Whittaker / Domestic cat chasing a Red fox (Vulpes vulpes) in an urban garden, Greater Manchester, UK, August 2017. Filmed using a camera trap.

Dave Bevan / Male Great spotted woodpecker (Dendrocopos major) descending down a wooden electricity pole, Carmarthenshire, Wales, UK, June.

Dave Bevan / Male Great spotted woodpecker (Dendrocopos major) flying to a nest hole in an electricty pole and feeding chick, Carmarthenshire, Wales, UK, June.

Bernard Castelein / Bulrush (Typha latifolia) Klein Schietveld, Brasschaat, Belgium

Gavin Hellier / Timelapse of traffic crossing Tower Bridge, London, England,UK, May 2016. Hellier

Sebastian Kennerknecht / South African Giraffe (Giraffa giraffa giraffa) juvenile at sunset, Greater Makalali Private Game Reserve, South Africa

Sebastian Kennerknecht / Leopard (Panthera pardus) female feeding on sub-adult male Impala (Aepyceros melampus) prey in tree, Greater Makalali Private Game Reserve, South Africa

John Waters / Large mixed flock of Knot (Calidris canutrus), Dunlin (Calidris alpina) and Golden plover (Pluvialis apricaria) in flight at high tide, Steart Marshes WWT Reserve, Somerset, England, UK, December.

Dave Bevan / Female Giant wood wasp (Uroceras gigas) inserting ovipositor into tree stump to lay eggs, Carmarthenshire, Wales, UK, September.

Alan Murphy/ BIA / Greater Roadrunner (Geococcyx californianus) running, Arizona

Terry Whittaker / Group of Common starlings (Sturnus vulgaris) feeding from a bird feeder, with an adult feeding juveniles perched on the top, Greater Manchester, England, UK, May.

Christophe Courteau / Greater flamingoes (Phoenicopterus ruber) and Lesser flamingoes (Phoeniconaias minor), Walvis Bay, Namibia.

Nick Upton / Close-up of a Dark green fritillary (Argynnis aglaja) nectaring on a Greater knapweed (Centaurea scabiosa) flower and flying off, Wiltshire, England, UK, July.

Tui De Roy / Great frigatebird (Fregata minor) male displaying inflated gular sac, Galapagos, Ecuador.

Dietmar Nill / Slow motion clip of a Greater horseshoe bat (Rhinolophus ferrumequinum) catching a moth in flight, Germany, captive.

Nick Upton / Panning shot of partially flooded pastureland with large flocks of Wigeon (Anas penelope), Lapwings (Vanellus vanellus) and Golden plover (Pluvialis apricaria) in flight, Gloucestershire, England, UK,...

Nick Upton / Flock of Lapwings (Vanellus vanellus) in flight, with Golden plover (Pluvialis apricaria) flying in the background, Gloucestershire, England, UK, January.

Matthew Maran / Urban Red fox (Vulpes vulpes) walking past wall with red fox mural / graffiti . North London, England, UK, April. Highly Commended in the People's Choice Awards, Wildlife Photographer of the Year 201...

Dave Bevan / Male Great spotted woodpecker (Dendrocopos major) entering nest hole and leaving with a faecal sac, Carmarthenshire, Wales, UK, June.

Claudio Contreras / Great Frigatebird (Fregata minor) departing from nest, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro Isl...

Thomas Marent / Greater Flamingo (Phoenicopterus ruber) flock flying, Los Flamencos Sanctuary, Guajira Peninsula, Colombia

Debapratim Saha/ BIA / Greater Necklaced Laughingthrush (Garrulax pectoralis), West Bengal, India

Eric Sohn Joo Tan/ BIA / Greater Flameback (Chrysocolaptes lucidus) male, Kerala, India

Hans Glader/ BIA / White-fronted Goose (Anser albifrons) group flying, North Rhine-Westphalia, Germany

Rolf Nussbaumer / Greater roadrunner (Geococcyx californianus), adult drinking, Rio Grande Valley, South Texas, Texas, USA. June

Oscar Diez/ BIA / Greater Flamingo (Phoenicopterus ruber) flock taking flight, Andalusia, Spain

Oscar Diez/ BIA / Greater Flamingo (Phoenicopterus ruber) trio taking flight from wetland, Andalusia, Spain

Neil Aldridge / Two adult African jacanas (Actophilornis africanus) flying over reedbeds, Selinda Spillway, northern Botswana.

Neil Aldridge / Two Impalas (Aepyceros melampus) ewes grooming each other in evening light on South Africa's Kruger National Park.

Fiona Rogers / Mountain gorilla (Gorilla gorilla beringei) female portrait, member of 'Humba' group . Virunga National Park, Democratic Republic of Congo, March.

Fiona Rogers / Mountain gorilla (Gorilla gorilla beringei) female portrait , part of the 'Munyanga' group. Virunga National Park, Democratic Republic of Congo, March.

Matthew Maran / Grass snake (Natrix natrix) flicking tongue, Hampstead Heath, London, England, UK, August.

Matthew Maran / Landscape of London at dawn with fog from Hampstead Heath, London, England, UK. November 2014.

Bence Mate / Great flamingo (Phoenicopterus roseus) group in flight, Pont De Gau Park, Rhone River, France.

Bence Mate / Great flamingo (Phoenicopterus roseus) feeding in sludge at bottom of river, Pont De Gau Park, Rhone River, France.

Bence Mate / Great flamingo (Phoenicopterus roseus) with beak covered in mud after feeding, Pont De Gau Park, Rhone River, France.

Bence Mate / Greater flamingos (Phoenicopterus roseus) with necks intertwined, Pont De Gau Park, Rhone River, France. February.

Luis Quinta / Great shearwater (Puffinus gravis) in flight, Fonte da Telha Beach, Portugal, October.

Luis Quinta / Great shearwater (Puffinus gravis) on ocean, near the Fonte da Telha Beach, Portugal, October.

Alex Hyde / Greater horseshoe bat (Rhinolophus ferrumequinum) roosting in cave. Croatia. November.

David Pattyn / European flamingo (Phoenicopterus roseus) bathing Camargue, France, May.

Michael Hutchinson / Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flower inflores...

Michael Hutchinson / Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flower inflores...

Andres M. Dominguez / Greater flamingos (Phoenicopterus roseus), Dehesa de Abajo, Sevilla, Spain, August.

Staffan Widstrand / Greater kudu (Tragelaphus strepsiceros) male by sand dunes, St Lucia Wetlands National Park, South Africa

Wim van den Heever / Lion (Panthera leo) male with scars photographed with side-lit spot light at night. Greater Kruger National Park, South Africa, April.

Wim van den Heever / Blue wildebeest (Connochaetes taurinus) herd silhouetted against the rising sun with clouds in the background. Greater Kruger National Park, South Africa

Wim van den Heever / Leopard (Panthera pardus) male looking up at his kill in the tree. Greater Kruger National Park, South Africa, July.

Wim van den Heever / Leopard (Panthera pardus) male rolling on a rock. Greater Kruger National Park, South Africa, July.

Wim van den Heever / Leopard (Panthera pardus) male walking on a rock. Greater Kruger National Park, South Africa, July.