Bernard Castelein / Silver birch (Betula pendula) on misty morning. Klein Schietveld, Brasschaat, Belgium. September 2011.

Andy Trowbridge / South Island Robin (Petroica australis australis) perched on stump, Kohaihai River, Kahurangi National Park, South Island, New Zealand. January.

Andy Trowbridge / New Zealand Falcon (Falco novaeseelandiae), female with chick on nest made under a native flax plant. Oreti River, Mossburn, Southland, South Island, New Zealand. December.

Andy Trowbridge / New Zealand Falcon (Falco novaeseelandiae) , female, close up portrait of head and shoulder, Oreti River, Mossburn, Southland, South Island, New Zealand. December.

Andy Trowbridge / New Zealand Falcon (Falco novaeseelandiae), male perched on shrub. Oreti River, Mossburn, Southland, South Island, New Zealand. December.

Andy Trowbridge / New Zealand Falcon (Falco novaeseelandiae), male perched on shrub. Oreti River, Mossburn, Southland, South Island, New Zealand. December.

Andy Trowbridge / New Zealand Falcon (female) hovering in flight. Oreti River, Mossburn, Southland, South Island, New Zealand. December.

Andy Trowbridge / Light playing on the Lindis Pass tussocks covered hills and valleys. Lindis Pass is part of the Lindis Conservation Area, Hawea and Ahuriti Conservation Parks. This region is possibly New Zealand's be...

Andy Trowbridge / Great Grey Owl (Strix nebulosa) feeding owlet, perched on fallen branch. Ostersund, Sweden. June.

Andy Trowbridge / Late evening light on the Souttern Alps being perfectly relected in the calm waters of Lake Matheson. New Zealand's highest mountain, Mount Cook or Aoraki (3754m) is tho the right, and Mount Tasman (3...

Andy Trowbridge / Late evening light on the Souttern Alps being perfectly relected in the calm waters of Lake Matheson. New Zealand's highest mountain, Mount Cook or Aoraki (3754m) is on the right, and Mount Tasman (34...

Andy Trowbridge / New Zealand Falcon (Falco novaeseelandiae), female calling. Oreti River, Mossburn, Southland, South Island, New Zealand. December.

Andy Trowbridge / Fly fisherman casting a fly to a sighted brown trout (Salmo trutta) in a gin clear 'backcountry' river, Springs Junction, West Coast, South Island, New Zealand. December, 2009.

Andy Trowbridge / Lenticular clouds over Lake Pukaki and the Southern Alps. Aoraki/Mount Cook National Park, Mackenzie District, Canterbury, South Island, New Zealand. January, 2009.

Andy Trowbridge / European beaver (Castor fiber) portrait in snow. Southern Norway. February.

Andy Trowbridge / European beaver (Castor fiber) in snow. Portrait with snow covered face. Southern Norway. February.

Andy Trowbridge / Great Grey Owl (Strix nebulosa) adult and chicks on nest. Nest 'frame' is manmade. Ostersund, Sweden. June.

Andy Trowbridge / European beaver (Castor fiber) portrait. Standing on snow at rivers edge. Southern Norway. February.

Andy Trowbridge / Great Grey Owl (Strix nebulosa) adult and chicks on nest. Nest 'frame' is manmade. Ostersund, Sweden. June.

Andy Trowbridge / Great Grey Owl (Strix nebulosa) adult and chicks on nest. Nest 'frame' is manmade. Ostersund, Sweden. June.

Andy Trowbridge / Great Grey Owl (Strix nebulosa) adult and chick under wing on nest. Nest 'frame' is manmade. Ostersund, Sweden. June.

Andy Trowbridge / Great Grey Owl (Strix nebulosa) adult and chicks on nest. Adult is cleaning nest of faeces. Nest 'frame' is manmade. Ostersund, Sweden. June.

Andy Trowbridge / Great Grey Owl (Strix nebulosa) adult on nest, watching over chicks as they sleep. Nest 'frame' is manmade. Ostersund, Sweden. June.

Andy Trowbridge / Flowering lupins (Lupinus polyphyllus) near Lake Tekapo, South Canterbury, South Island, New Zealand. December.

Andy Trowbridge / A fly fisherman searches for trout on a freestone river, North Canterbury, South Island, New Zealand. December, 2011.

Andy Trowbridge / Underwater shot of a fly fisherman releasing a large brown trout (Salmo trutta) in a gin clear 'backcountry' river, North Canterbury South Island, New Zealand. December.

Andy Trowbridge / New Zealand Scaup (Aythya novaeseelandiae) at rest, early morning light, Lake Alexandrina, Mackenzie Basin, South Island, New Zealand. December.

Andy Trowbridge / Yellow-eyed Penguin (Megadyptes antipodes) feeding chick. Katiki Point, Moeraki, Otago, New Zealand. January. Endangered species.

Andy Trowbridge / White-fronted terns (Sterna striata) at breeding colony, Shag Point, Waitaki District, Otago Region, South Island, New Zealand. January.

Andy Trowbridge / Two fly fishermen fishing to 'sighted' brown trout (Salmo trutta) in a clear 'backcountry' river, North Canterbury South Island, New Zealand. December, 2011.

Andy Trowbridge / Yellow-eyed Penguin (Megadyptes antipodes) or Hoiho with chick. Katiki Point, Moeraki, Otago, South Island, New Zealand. January. Endangered species.

Andy Trowbridge / Moeraki Boulder / Kaihinaki on Koekohe Beach at sunrise. 60 Million year old mudstone concretions. Moeraki, Waitaki District, Otago Region, South Island, New Zealand. January, 2012.

Andy Trowbridge / Yellow-eyed Penguin (Megadyptes antipodes) or Hoiho on beach in late evening sun. Endangered species. Katiki Point, Moeraki, Otago, South Island, New Zealand. January.

Andy Trowbridge / Moeraki Boulders / Kaihinaki on Koekohe Beach at sunrise, crepuscular rays on the horizon. 60 Million year old mudstone concretions. Moeraki, Waitaki District, Otago Region, South Island, New Zealand....

Andy Trowbridge / A moeraki boulder/ Kaihinaki on Koekohe Beach at sunrise. Tide sweeping around boulder, slow shutter speed. 60 Million year old mudstone concretions. Moeraki, Waitaki District, Otago Region, New Zeala...

Andy Trowbridge / Moeraki Boulder / Kaihinaki on Koekohe Beach at sunrise. 60 Million year old mudstone concretions. Moeraki, Waitaki District, Otago Region, South Island, New Zealand. January, 2012.

Andy Trowbridge / Moeraki Boulder / Kaihinaki on Koekohe Beach at sunrise. 60 Million year old mudstone concretions. Moeraki, Waitaki District, Otago Region, South Island, New Zealand. January, 2012.

Andy Trowbridge / Brown trout (Salmo trutta) on net with artificial dry fly (cicada imitation) in corner of mouth. North Canterbury, South Island, New Zealand. January, 2012.