David Kjaer / Griffon vulture (Gyps fulvus) coming in to land, Spain, July

David Kjaer / Great bustard (Otis tarda) chicks hatched from eggs collected under licence from the Castilla-La Mancha region of Spain.

David Kjaer / Duke of Burgundy butterfly (Hamearis lucina), Wiltshire, UK, June.

David Kjaer,David Kjaer / Great Bustard (Otis tarda) adult male breeding plumage in full spring display, on Salisbury Plain, part of a reintroduction project with birds imported under DEFRA licence from Russia. Salisbury Plain...

David Kjaer / Flock of Common Starling (Sturnus vulgaris) gathering before landing at winter roost, Salisbury Plain, Wiltshire, UK, January

David Kjaer / Cuckoo (Cuculus canorus) perched in tree. Buckinghamshire, UK, June.

David Kjaer / Common Dormouse (Muscardinus avellanarius) sleeping on leaves. Bentley Wood, Wiltshire, May.

David Kjaer / Portrait of a Red Fox (Vulpes vulpes) in a frosty field. Buckinghamshire, UK, December.

David Kjaer / Red Kite (Milvus milvus) diving towards prey whilst in flight, Wales, UK, March.

David Kjaer / Pearl-bordered Fritillary butterfly (Boloria euphrosyne) at rest on Bracken with wings closed, Bentley Wood, Wiltshire, England, UK

David Kjaer / Pearl-bordered Fritillary butterfly (Boloria euphrosyne) at rest on Bracken with wings open, Bentley Wood, Wiltshire, England, UK

David Kjaer / Lapwings (Vanellus vanellus) flock in flight, Gloucestershire, England, UK. February

David Kjaer / Four Coot (Fulica atra) chicks, perched on exposed surface, surrounded by water, Wiltshire, England, UK. May.

David Kjaer / Harvest Mouse ( Micromys minutus) feeding on ear of wheat, Captive, UK, August

David Kjaer / Pair of Northern pintail ducks (Anas acuta) in flight, Gloucestershire, England

David Kjaer / Flock of Blue tits (Parus caeruleus) and Great tit (Parus major) on Niger seed feeder, Gloucestershire, England

David Kjaer / Small flock of Bewick's / Tundra swans (Cygnus columbianus) on water, in snow covered landscape, Gloucestershire, England

David Kjaer / Male American robin (Turdus migratorius) puffed up to keep warm, and perched on Juniper branch, Kentucky, USA

David Kjaer / Male Twite (Carduelis flavirostris) perched on gorse, North Uist, Outer Hebrides, Scotland, May

David Kjaer / Sand martin (Riparia riparia) adult and juveniles at entrance to nest burrows, Worcestershire, England, July

David Kjaer / Sand martin (Riparia riparia) juvenile at entrance to nest burrow, Worcesrtershire, England, July

David Kjaer / Red fox (Vulpes vulpes) cub in Bluebells, Oxfordshire, England, May

David Kjaer / Seabird breeding cliffs, northern end of Handa Island, off the north west coast of Scotland, June.

David Kjaer / Two Goldfinch (Carduelis carduelis) perched on lichen covered branch, Gloucestershire, England.

David Kjaer / Eagle owl (Bubo bubo) flying low over grassland, captive, UK.

David Kjaer / Chiffchaff (Phylloscopus collybita) in spring. Wiltshire, England.

David Kjaer / Barn owl (Tyto alba) in flight over reeds, captive, UK

David Kjaer / Whooper swan (Cygnus cygnus) pair at sunset on the Ouze Washes, Norfolk, England

David Kjaer / Stonehenge at sunrise on the 21st September, the autumn equinox, Wiltshire, UK

David Kjaer / Mexican Free-tailed Bat (Tadarida brasiliensis mexicana) emerging at dusk from Frio Cave, near Concan in the Texas Hill Country, Texas, USA.

David Kjaer / Robin (Erithacus rubecula) singing in spring, Gloucestershire, England

David Kjaer / Dunlin (Calidris alpina), winter flock in flight (approx 100), Gloucestershire, England

David Kjaer / Red-legged Partridge (Alectoris rufa) Wiltshire, England

David Kjaer / Fallow Deer (Dama dama) bucks or males fighting during autumn 'rut' in Richmond Park, London, England

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

David Kjaer / Fallow Deer ( Dama dama) bucks or males at sunrise on a misty morning in Richmond Park, London, England

David Kjaer / Yellow-legged Gull (Larus cachinnans) & two Juvenile Herring Gull (Larus argentatus) catching fish and fighting, Poland

David Kjaer / Flock of Cormorant (Phalacrocorax carbo) leaving roost, Poland

David Kjaer / Flock of Common Crane (Grus grus) flying over wind turbines on migration in Poland. Wind farm.

David Kjaer / Water Vole (Arvicola terrestris) on muddy river bank near burrow, Wiltshire, England

David Kjaer / Water Vole (Arvicola terrestris) emerging from burrow on muddy river bank, Wiltshire, England

David Kjaer / Water Vole (Arvicola terrestris) emerging from burrow on muddy river bank, Wiltshire, England

David Kjaer / Red Kites (Milvus milvus) in flight, fighting over food, Wales

David Kjaer / Common Kingfisher (Alcedo atthis) pair mating, Buckinghamshire, England

David Kjaer / Reed warbler (Acrocephalus scirpaceus) with large fledgling Cuckoo (Cuculus canorus) in it's nest, Essex, UK

David Kjaer / Curious domestic cattle {Bos taurus} approaching the photographer, Somerset, UK

David Kjaer / Two Rooks flying {Corvus frugilegus} UK

David Kjaer / Female Pied flycatcher (Ficedula hypoleuca) with insects in beak on flowering hawthorn, spring, Wales UK