Dave Bevan / Slow motion clip of two pairs of Jackdaws (Corvus monedula) squabbling over nest site, Worcestershire, England, UK, May.
Bernard Castelein / Oak (Quercus robur) in Heather (Calluna vulgaris) at sunrise, Klein Schietveld, Brasschaat, Belgium
Theo Bosboom / Autumn leaves from Beech trees, Oak trees and Birch trees floating under water in the current of a mountain stream, La Hoegne, Ardennes, Belgium.
Theo Bosboom / Autumn leaves from Beech, Oak and Birch trees floating on water, taken from underwater, Ardennes, La Hoegne, Belgium.
Ross Hoddinott / Ancient oak tree (Quercus robur), Marsland Mouth, Devon Wildlife Trust, Devon, UK. April 2017.
Andres M. Dominguez / Portuguese oak tree (Quercus faginea) covered in moss, Los Alcornocales Natural Park, southern Spain, November.
Andres M. Dominguez / Holm oak tree (Quercus ilex) in snowfall, Sierra de Grazalema Natural Park, southern Spain, January.
Solvin Zankl / Great capricorn beetle (Cerambyx cerdo) on Oak tree (Quercus sp) Niedersachsische Elbtalaue Biosphere Reserve, Lower Saxonian Elbe Valley, Germany, July.
Solvin Zankl / English oak tree (Quercus robur) in moonlight, Nauroth, Germany, February.
Niall Benvie / The Birnam Oak, an ancient English oak tree (Quercus robur) nearly 1000 years old, Perthshire, Scotland, UK, July.
Solvin Zankl / Gall wasp (Cynips quercusfolii) emerging from the oak gall. Germany, October.
Solvin Zankl / English oak tree (Quercus robur) silhouetted against orange sky with star trails, Nauroth, Germany, October.
Solvin Zankl / Springtail (Dicyrtomina ornata) on oak tree leaf. Niedersechsische Elbtalaue Biosphere Reserve, Elbe Valley, Lower Saxony, Germany, December.
Solvin Zankl / 'Femeiche' the Court Tree at night, an ancient English oak (Quercus robur) used in the Middle ages as Vehmic or secret court in which serious criminals were judged and executed. Erle, Germany, Octobe...
Solvin Zankl / Stag beetle (Lucanus cervus) silhouetted against oak tree leaf. Elbe, Germany, June.
Solvin Zankl / Stag beetle (Lucanus cervus) male on oak tree. Elbe, Germany, June.
Solvin Zankl / The Scarce Merveille du Jour (Moma alpium) caterpillar with urticating hairs on English oak tree (Quercus robur) leaf, Stettin Lagoon, Bay of Szczecin, Germany, August.
Kirkendall-Spring / Oak trees (Quercus) in the fog, Figueroa Mountain, Los Padres National Forest, California, USA.
Matthew Maran / Oak tree (Quercus robur) in snow, Hampstead Heath, London, UK, January 2013.
Ben Hall / Stunted oak woodland covered in moss, Wistman's Wood, Devon, UK. August. Highly Commended in the Wild Woods category of the British Wildlife Photography Awards (BWPA) competition 2013.
Jouan Rius / Black oak (Quercus velutina) in autumn, in Yosemite valley, Yosemite National Park, California, USA, December 2012.
Juan Carlos Munoz / Iberian black pig in oak woodland, Sierra de Aracena Natural Park, Huelva, Andalucia, Spain, Europe. Breed used to produce Iberico ham / Jamon Iberico
Juan Carlos Munoz / Iberian black pig foraging in oak woodland, Sierra de Aracena Natural Park, Huelva, Andalucia, Spain, Europe. Breed used to produce Iberico ham / Jamon Iberico
Theo Bosboom / Oak tree (Quercus sp) with snow in autumn, Rozendaalse Bos, near Arnhem, the Netherlands, November
Sven Zacek,Sven Zacek / Famous Puhajarve war oak (Quercus) seen through dense fog. Southern Estonia, April 2011.
David Woodfall / Sessile oak (Quercus petraea) tree with sunlight behind, ancient semi natural woodland in Gilfach Nature Reserve, Radnorshire Wildlife Trust, Powys, Wales, UK May
Matthew Maran / Base of large Oak tree in Richmond Park, London, UK March 2012
Sandra Bartocha / English oaks (Quercus robur) trees with snow on trunks, Gespensterwald / Ghost wood, Nienhagen, Germany, January
Guy Edwardes / 2020VISION / View over New Forest heathland with Oak (Quercus robur) tree. Fritham Cross, New Forest National Park, Hampshire, England, UK, August. Did you know? The New Forest has the most extensive area of heath...
Rolf Nussbaumer / Northern raccoon (Procyon lotor) young at night climbing live Oak tree (Quercus virginiana) Dinero, Lake Corpus Christi, South Texas, USA.
Fabrice Cahez / Oak (Quercus sp) forest at dawn, Vosges, France, January
Nick Upton / Great capricorn / Great oak longhorn beetle (Cerambyx cerdo), one of the largest beetles in Europe, on tree trunk, Lesbos (Lesvos), Greece, June.
Pascal Tordeux / Oak (Quercus) covered with frost. Picardy, France.
Peter Cairns / 2020VISION / Oak woodland in spring with moss covered glacial rocks, Sunart Oakwoods, Ardnamurchan, Highland, Scotland, UK, May
Peter Cairns / 2020VISION / Sessile Oak tree (Quercus petraea) in spring, Sunart Oakwoods, Ardnamurchan, Highland, Scotland, UK, May. 2020VISION Book Plate.
Niall Benvie / 2020VISION / Atlantic oak wood (Quercus petraea), Achduart, Coigach and Assynt, Sutherland, Scotland, UK, June 2011. Did you know? 284 species of insect are reliant on oak trees.
Peter Cairns / 2020VISION / Upland woodland containing birch, oak, hazel, Inverpolly, Sutherland, Highlands, Scotland, UK, January 2011
Ross Hoddinott / 2020VISION / New planting of young sapling English Oak tree (Quercus robur) in protective plastic ‘collar’, Feanedock Wood, The National Forest, Derbyshire, UK, November 2010.
Mark Taylor / English Oak (Quercus robur) standing solitary in a field. Surrey, UK, October. Year sequence, 3 of 4 (autumn).
Mark Taylor / English Oak (Quercus robur) standing solitary in a field. Surrey, UK, November. Year sequence, 1 of 4 (winter).
Ernie Janes / Seedling English oak tree (Quercus robur) in the rain, UK
Ernie Janes / Moon rising over winter landscape, stubble field and Oak trees, Gimingham, Norfolk, UK,
Ernie Janes / Snow covered arable field with Oak trees creating long winter shadows at dawn, Southrepps, Norfolk, UK
Ernie Janes / Snow falling on arable land with Oak trees in the background, Southrepps, Norfolk, UK, April
David Woodfall / Ancient semi natural woodland in mist with Oak (Quercus sp) and Hornbeam (Carpinus betulus). Romania, October 2010
John Cancalosi / Hoar frost covering ploughed field, with mature Oak tree (Quercus) and woodlands, Warwickshire, England, UK, December 2010
John Cancalosi / Hoar frost covering ploughed field, with mature Oak tree (Quercus) Warwickshire, England, UK, December 2010
Adam Burton / Ancient Oak tree (Quercus robur) growing in Savernake Forest in springtime, Marlborough, Wiltshire, England. May 2009