Anup Shah / Lesser flamingos {Phoeniconaias minor} performing 'wing salute' as part of courtship display, the wings are spread out to the side of the body and held in this position for several seconds, making the...

Andy Rouse / Little Bittern (Ixobrychus minutus) hunting in reeds, Bulgaria. Horizontal version of 01609394. Highly honoured in the Bird Category of the Nature's Best Photography Competition 2019.

Chase Dekker / Lesser Flamingo (Phoenicopterus minor) wading, Amboseli National Park, Kenya

Chase Dekker / Lesser Flamingo (Phoenicopterus minor) pair fighting, Amboseli National Park, Kenya

John Shaw / Pine tree (Pinus sp) in winter, Bryce Canyon National Park, Utah, USA, January.

Andy Rouse / Little bittern, (Ixobrychus minutus), hunting in reeds, Bulgaria, June. This is a crop of 1637244. Highly honoured in the Bird Category of the Nature's Best Photography Competition 2019.

Andy Rouse / Little bittern, (Ixobrychus minutus), hunting in reeds, Bulgaria, June.

Paul Souders/ Worldfoto / Lesser Flamingo (Phoenicopterus minor) flock flying, Lake Magadi, Kenya

Paul Souders/ Worldfoto / Lesser Flamingo (Phoenicopterus minor) flock nesting on island, Lake Natron, Tanzania

Paul Souders/ Worldfoto / Lesser Flamingo (Phoenicopterus minor) nesting colony, Lake Natron, Tanzania

SCOTLAND: The Big Picture / Ancient Scots pine (Pinus sylvestris) amongst flowering Common heather / Ling (Calluna vulgaris). Rothiemurchus Forest, Cairngorms National Park, Scotland, UK.

Erlend Haarberg / Semi-domesticated reindeer (Rangifer tarandus) walking on snow-covered road in pine forest. Lapland, Sweden. February.

Bernard Castelein / Scots pine tree (Pinus sylvestris) at sunrise, Klein Schietveld, Brasschaat, Belgium. September.

Bernard Castelein / Scots pine trees (Pinus sylvestris) in wetlands at dawn with the moon, Klein Schietveld, Brasschaat, Belgium

Bernard Castelein / Scots pine trees (Pinus sylvestris) on island in wetlands, Klein Schietveld, Brasschaat, Belgium

Bernard Castelein / Scots pine tree (Pinus sylvestris) with sunrays at sunrise. Klein Schietveld, Brasschaat, Belgium.

Bernard Castelein / Scot's pine tree (Pinus sylvestris) at dawn, Klein Schietveld, Brasschaat, Belgium, October 2013.

Jack Dykinga / Agave (Agave utahensis) close up of spines with Pinyon pine cone (Pinus edulis) wedged amongst them. Grand Canyon-Parashant National Monument, Arizona, USA

Jack Dykinga / Ponderosa pine (Pinus ponderosa) growing in Grand Staircase-Escalante National Monument, Utah, October 2014.

Terry Whittaker / Red squirrel (Sciurus vulgaris) leaping between Scots pine tree (Pinus sylvestris)s, lands on camera, Black Isle, Ross and Cromarty, Scotland, February.

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

SCOTLAND: The Big Picture / Close up of a Red deer (Cervus elaphus) stag feeding in snow, Cairngorms National Park, Scotland, UK, February.

SCOTLAND: The Big Picture / Capercaillie (Tetrao urogallus) feeding in a Scots pine tree (Pinus sylvestris), Cairngorms National Park, Scotland, UK, February.

SCOTLAND: The Big Picture / Scots pine trees (Pinus sylvestris) in heavy snowfall, Cairngorms National Park, Scotland, UK, January.

Denis-Huot / Lesser flamingo (Phoeniconaias minor) flock in the mist, Lake Nakuru, Kenya. March.

Ingo Arndt / European Red Wood Ant (Formica polyctena) nests in pine forest, Hessen, Germany, July.

Ingo Arndt / Mass of Ladybirds (Hippodamia convergens) hibernating on pine tree bark, California, USA

SCOTLAND: The Big Picture / Ancient Scots pine tree (pinus sylvestris) with dead low branches, in evening light. Cairngorms National Park, Highlands, Scotland, UK. February 2008.

SCOTLAND: The Big Picture / Scots pine (Pinus sylvestris) seedling growing amongst lichens and heather. Cairngorms National Park. Highlands, Scotland, September.

Jack Dykinga / Ponderosa pine (Pinus ponderosa) against a star filled sky with a brilliant Milky Way. Zion National Park, Utah, USA, September.

SCOTLAND: The Big Picture / Scots pine (Pinus sylvestris) with Northern lights / Aurora borealis lighting up the night sky in background, Monadhliath Mountains, Cairngorms National Park, Scotland, UK, October 2015.

Nick Garbutt / Sun beam at sun rise over the Grand Canyon of the Yellowstone, Yelllowstone National Park, Wyoming, USA. January 2016

Sandra Bartocha / European beech (Fagus sylvatica) and Pines, Schweingartensee, Serrahn, Muritz-National Park, World Natural Heritage site, Germany, Europe. November 2015.

Sandra Bartocha / European beech (Fagus sylvatica) and Pines reflected in Schweingartensee lake.Serrahn, Muritz-National Park, World Natural Heritage site, Germany, Europe. November 2015.

Floris van Breugel / Bristlecone pine (Pinus aristata) abstract view of exposed and weathered wood layers, White Mountains, California, USA July

Floris van Breugel / Ancient Bristlecone pine (Pinus aristata) clings to life, with a grand view of endless sage valleys, White Mountains, California, USA, July

Floris van Breugel / Camping in Big Pine Lakes, Sierra Nevada, Sequoia National Park, California, USA, May

Bence Mate / Little bittern (Ixobrychus minutus) watching Great warbler (Acrocephalus arundinaceus) with prey, Lake Csaj, Kiskunsagi National Park, Hungary.

Bence Mate / Little bittern (Ixobrychus minutus) hunting from reed, Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary, June.

Bence Mate / Little bittern (Ixobrychus minutus) flying, splashing water behind, Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary. June.

Niall Benvie / Scots pines (Pinus sylvestris) Torridon, Scotland, UK, November.

Theo Allofs / Lesser Flamingo (Phoenicopterus minor) flock taking flight, Lake Bogoria, Kenya

Roland Seitre / Lesser Flamingo (Phoenicopterus minor) resting, Namibia

Andy Trowbridge / Capercaillie (Tetrao urogallus) male displaying in Scots pine tree (Pinus sylvestris) Southern Norway. May.

Erlend Haarberg / Siberian jay (Perisoreus infaustus) in Scots pine forest, near fallen tree, Stora Sjofallet National Park, Laponia World Heritage Site, Lapland, Sweden, October.

Enrique Lopez-Tapia / Tjibaou Cultural Center designed by Renzo Piano. The building is designed to be integrated with the surrounding forest. Noumea, New Caledonia, September 2008.

Denis-Huot / Three Lesser flamingos (Phoeniconaias minor) silhouetted in front of geyser, Lake Bogoria National Reserve, Kenya.

Sandra Bartocha / Scots pine (Pinus sylvestris) trees in snowy woodland in evening sunlight, Potsdam, Germany, January.

Sandra Bartocha / Silver birch (Betula pendula) and Scots pine (Pinus sylvestris) trunks in snow, Muritz-National Park, Germany, January.

Sandra Bartocha / Scots pine (Pinus sylvestris) forest in spring, Muritz-National Park, Germany, May.

Eric Baccega / Polar bear cub 3 months (Ursus maritimus) playing in the front of the day den in march. Wapusk National Park. Churchill, Manitoba, Canada

Andy Trowbridge / Pine marten (Martes martes) juvenile male looking around pine tree. Molde, Central Norway, September.

Peter Cairns / Wood patterns in Lodgepole pine (Pinus contorta) Yellowstone National Park, Wyoming, USA, January.

Denis-Huot,Denis-Huot / Greater flamingos (Phoenicopterus ruber roseus) males displaying, lake Nakuru, Kenya

Denis-Huot / Lesser flamingo (Phoeniconaias minor) flock, Bogoria Game Reserve, Kenya

Denis-Huot,Denis-Huot / Lesser flamingo (Phoeniconaias minor) aerial view of flock and geyser, Bogoria Game Reserve, Kenya

Denis-Huot,Denis-Huot / Lesser flamingo (Phoeniconaias minor) males in display, Lake Nakuru, Kenya

Sven Zacek / Rays of sunshine behind pine trees, Southern Estonia, May early morning.

Theo Bosboom,Theo Bosboom / Lily pads (Nymphaceae) with the reflections of pine trees, with water reflections, Tresticklan National Park, Southwest Sweden, September

David Pattyn,David Pattyn / Snow covered mountain slopes with pine trees in Gran Paradiso National Park, Italy, December 2011

Andy Rouse,Andy Rouse / Aerial view of Lesser Flamingos (Phoenicopterus / Phoeniconaias minor) in flight. Lake Magadi, Kenya.

Juan Carlos Munoz,Juan Carlos Munoz / Lesser flamingo (Phoeniconaias minor) portrait, Lake Bogoria, Rift valley, Kenya, Africa

Juan Carlos Munoz,Juan Carlos Munoz / Two Lesser flamingos (Phoeniconaias minor) one feeding the other running, Lake Nakuru NP, Rift Valley, Kenya

Juan Carlos Munoz,Juan Carlos Munoz / Lesser flamingo (Phoeniconaias minor) flock in lake in morning, Lake Nakuru NP, Rift Valley, Kenya

Juan Carlos Munoz,Juan Carlos Munoz / Lesser flamingos (Phoeiconaias minor) feeding in still lake, Lake Nakuru, Rift valley, Kenya, Africa

Juan Carlos Munoz,Juan Carlos Munoz / Lesser flamingo (Phoeniconaias minor) flock in lake Nakuru, Kenya

Juan Carlos Munoz / Lesser flamingos (Phoeniconaias minor) flock in Lake Bogoria, Rift valley, Kenya

Juan Carlos Munoz / Lesser flamingos (Phoeniconaias minor) on Lake Bogoria, Kenya

Juan Carlos Munoz,Juan Carlos Munoz / Lesser flamingo flock (Phoeniconaias) flying over lake with green algae, aerial view, Rift valley, Kenya

Juan Carlos Munoz,Juan Carlos Munoz / Lesser flamingos (Phopeniconaias minor) flock, aerial view, Natron lake, Rift valley, Tanzania, Africa

Denis-Huot,Denis-Huot / Spotted hyena (Crocuta crocuta) with Lesser flamingo (Phoenicopterus minor) it has just caught, Lake Nakuru, Kenya

Denis-Huot / Spotted hyena (Crocuta crocuta) hunting Lesser flamingoes (Phoenicopterus minor) Lake Nakuru, Kenya

Sven Zacek,Sven Zacek / Small pine tree growing in bog, just before sunrise. Estonia August 2011.

Sven Zacek,Sven Zacek / Kopu lighthouse - the oldest lighthouse in Estonia, on Hiiumaa island. August 2011.

Tim Fitzharris / Lesser Flamingo (Phoenicopterus minor) flock flying, Lake Magadi, Kenya

Tim Fitzharris / Lesser Flamingo (Phoenicopterus minor) flock flying, Lake Magadi, Kenya

Konstantin Mikhailov / The upper forest belt in Altai Mountains after first snowfall, Katunsky Range with Siberian larch trees (Larus sibirica rufous) and Siberian pine trees (Pinus sibirica) Mt.Belukha Nature park, South-...

Roy Mangersnes / Golden eagle (Aquila chrysaetos) perched on dead pine tree, Southern Norway, December

Todd Mintz / Great Horned owl, (Bubo virginianus) in flight, Regina, Saskatchewan, Canada, March

Alex Hyde / Pine seedlings (Pinus sp) with seed cases attached, Nordtirol, Austrian Alps, Austria, June.

Kirkendall-Spring / Rows of pine trees in Pine forest plantation along Highway 203, Applin County, Georgia, USA, November 2008

Kirkendall-Spring / Rows of pine trees in Pine forest plantation along Highway 203, Applin County, Georgia, USA, November 2008

George Sanker / Limber Pine (Pinus flexilis). Grand Teton National Park, Wyoming, USA, October 2010. Famous patriarch tree of the Grand Tetons just after fall snowstorm. Winner: World Landscapes category in the Outdo...

George Sanker / Limber Pine (Pinus flexilis) against high mountain peaks. Grand Teton National Park, Wyoming, USA. Autumn 2010.

Danny Green / Little Auks (Alle alle) flying low above surface in front of iceberg. Spitsbergen, Svalbard, Norway, July 2010. Highly commended in the Birds category in the GDT competition 2011.

Philippe Clement / Heavy rain pouring down on lake Lago dei Caprioli surrounded by pine forest. Dolomites, Italy, July 2010.

Philippe Clement / Heavy rain pouring down on lake Lago dei Caprioli surrounded by pine forest. Dolomites, Italy, July 2010.

Barrie Britton / Lesser flamingos (Phoenicopterus minor). Lake Bogoria, Kenya. Picture taken during filming for BBC "Life" TV Series, May 2008

Markus Varesvuo / Siberian Jay (Perisoreus infaustus) perched on snow covered pine tree, Kuusamo, Finland, February

Angelo Gandolfi / Mouflon ram (Ovis musimon) portrait, standing in forest, Foret de Valdu Niellu, Corte, Parc Naturel Regional de Corse, Corsica island, France, February

Floris van Breugel / Two Limber Pine trees (Pinus flexilis) lit by the low sun, over the snow covered summit of Telescope Peak from the Charcoal Kilns, with desert landscape beyond, Death Valley National Park. California,...

Juan Carlos Munoz / Aerial view of a flock of Lesser Flamingos (Phoeniconaias minor) wading in Lake Natron, with sediment trails, Rift Valley, Tanzania, Africa, August 2009

Juan Carlos Munoz / Aerial view of a flock of Lesser Flamingos (Phoeniconaias minor) wading in Lake Natron, with sediment trails, Rift Valley, Tanzania, Africa, August 2009

Juan Carlos Munoz / Aerial view of nursery of Lesser Flamingos (Phoeniconaias minor) on Lake Natron, Rift Valley, Tanzania, Africa, August 2009

Juan Carlos Munoz / Aerial view of flock of Lesser Flamingos (Phoeniconaias minor) wading in Lake Magadi, with sediment trails, Rift Valley, Kenya, Africa, August 2009

Juan Carlos Munoz / Aerial view of flock of Lesser Flamingos (Phoeniconaias minor) flying low over Lake Magadi, Rift Valley, Kenya, Africa, August 2009