Bernard Castelein / Wood anemone flower {Anemone nemorosa} Belgium

Bernard Castelein / Coquerel's sifaka (Propithecus coquereli) in tree, relaxing, Ankarafantsika National Park, Madagascar

Bernard Castelein / Silky sifaka (Propithecus candidus) in tree, Marojejy National Park, Madagascar. Critically endagered species.

Bernard Castelein / Yellow-rumped cacique (Cacicus cela) calling, Madidi NP, Bolivia

Bernard Castelein / Indian Flying Fox (Pteropus giganticus) male roosting in tree, Keoladeo NP, Bharatpur, India

Bernard Castelein / Rhesus macaque (Macaca mulatta), mixed group of female and juveniles, walking along a track, Keoladeo National Park, Bharatpur, India

Bernard Castelein / Rhesus macaque (Macaca mulatta), juveniles playing in tree, Keoladeo NP, Bharatpur, India

Bernard Castelein / Spotted owlet ( Athena brama), Keoladeo NP, Bharatpur, India

Bernard Castelein / Sarus crane (Grus antigone), male displaying, Keoladeo NP, Bharatpur, India

Bernard Castelein / Darter ( Anhinga melanogaster) drying wings, Keoladeo NP, Bharatpur, India

Bernard Castelein / Intermediate egret (Egrettta intermedia), Keoladeo NP, Bharatpur, India

Bernard Castelein / Guianan brown capuchin (Sapajus apella) chewing on branch, Pampas del Yacuma Protected Area, Bolivia

Bernard Castelein / Bolivian red howler (Alouatta sara), Pampas del Yacuma Protected Area, Bolivia

Bernard Castelein / Sunrise over Klein Schietveld, Brasschaat, Belgium. July 2014.

Bernard Castelein / Sunrise over Klein Schietveld, Brasschaat, Belgium. July 2014.

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

Bernard Castelein / Oak (Quercus robur) in Heather (Calluna vulgaris) at sunrise, Klein Schietveld, Brasschaat, Belgium

Bernard Castelein / Row of three trees in snow, Groot Schietveld, Wuustwezel, Belgium, January 2010.

Bernard Castelein / Grasses covered in frost, Klein Schietveld, Brasschaat, Belgium, January 2009.

Bernard Castelein / Birch tree (Betula pendula) covered in hoar frost, Groot Schietveld, Wuustwezel, Belgium, December 2007.

Bernard Castelein / Heather (Calluna vulgaris) at dawn, with distant trees, Klein Schietveld, Brasschaat, Belgium

Bernard Castelein / Heather (Calluna vulgaris) at dawn, with distant trees, Klein Schietveld, Brasschaat, Belgium

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

Bernard Castelein / Remnants of old military railway, Klein Schietveld, Brasschaat, Belgium, July 2013.

Bernard Castelein / Waterviolet / featherfoil (Hottonia palustris) at sunset, Groot Schietveld, Wuustwezel, Belgium

Bernard Castelein / Poppy (Papaver rhoeas) De Inslag, Brasschaat, Belgium

Bernard Castelein / Beech woodland (Fagus sylvatica) Peerdsbos, Brasschaat, Belgium

Bernard Castelein / Beech woodland (Fagus sylvatica) with sun rays shining through, black and white image. Peerdsbos, Brasschaat, Belgium

Bernard Castelein / Beech tree (Fagus sylvatica) showing roots, Peerdsbos, Brasschaat, Belgium

Bernard Castelein / Beech woodland (Fagus sylvatica) Peerdsbos, Brasschaat, Belgium, November.

Bernard Castelein / Trees reflected in marshland, Peerdsbos, Brasschaat, Belgium

Bernard Castelein / Sunrise reflected in water with ripples, Klein Schietveld, Brasschaat, Belgium

Bernard Castelein / Reeds reflected in water at sunrise, Klein Schietveld, Brasschaat, Belgium

Bernard Castelein / Wetland at sunrise, Klein Schietveld, Brasschaat, Belgium

Bernard Castelein / Wetland at sunrise, Klein Schietveld, Brasschaat, Belgium

Bernard Castelein / Wetland at sunrise, Klein Schietveld, Brasschaat, Belgium

Bernard Castelein / Wetland at sunrise, Klein Schietveld, Brasschaat, Belgium

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

Bernard Castelein / Klein Schietveld during drought, this land is normally flooded wetlandsland, Brasschaat, Belgium. August.

Bernard Castelein / Frozen water patterns in Klein Schietveld, Brasschaat, Belgium

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

Bernard Castelein / Sunrise over Groot Schietveld, Wuustwezel, Belgium. June 2015.

Bernard Castelein / Deergrass (Scirpus cespitosus) at dawn among Heather (Calluna vulgaris), Groot Schietveld, Wuustwezel, 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 / Sunrise at Klein Schietveld, Brasschaat, Belgium.

Bernard Castelein / Puna / James flamingo (Phoenicoparrus jamesi) taking off from Laguna Hedionda, between Polques and Quetena, altiplano, Bolivia September

Bernard Castelein / Emerald damselfly (Lestes sponsa) at sunrise, Klein Schietveld, Brasschaat, Belgium August