Jussi Murtosaari / Grey Birch butterfly (Aethalura punctulata) resting on tree trunk in woodland habitat, Pirkanmaa, Finland, May.
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Peter Cairns / 2020VISION / Sunset over Loch Laggan, Creag Meagaidh NNR, Highland, Scotland, UK, December 2010. Photographer quote: "I've got to admit I wasn't happy after a fruitless flat grey day in the hills. And then, as if...
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Wild Wonders of Europe / Cairns / Great grey owl (Strix nebulosa) peering around birch tree, Bergslagen, Sweden, June 2009
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Pete Cairns / European Wolf (Canis lupus) adult female in boreal birch forest in winter, Bardu, Norway, captive
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Melvin Grey / Bar tailed godwit (Limosa lapponica) nest with four eggs surrounded by dwarf birch, on tundra, North Norway
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Melvin Grey / Whimbrel (Numenius phaeopus) adult at nest with eggs, in marshy area with with dwarf birch and willow, bilberry, bog rosemary , Mounio, Finland
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Paul Hobson / Early grey moth adult (Xylocampa areola) resting on birch bark, Sheffield, England, UK, April.
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Ingo Arndt / Great grey owl (Strix nebulosa) camouflaged perched in tree on the edge of birch tree forest, Finland, February.
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Sylvain Cordier / Grey Wolf (Canis lupus) in between birch trees, captive, USA
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Juan Carlos Munoz / Great grey owl (Strix nebulosa) camouflaged in birch woodland, Finland, March.
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Erlend Haarberg / RF - Autumnal moth (Epirrita autumnata) on birch tree trunk. Vauldalen, Norway. (This image may be licensed either as rights managed or royalty free.)
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SCOTLAND: The Big Picture / Abstract of autumnal Silver birch (Betula pendula), Cairngorms National Park, Scotland, UK, October.
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Andres M. Dominguez / Great grey owl (Strix nebulosa) perched on birch tree, Finland, March.
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Sven Zacek / Ural owl (Strix uralensis) perched on a birch tree with a Grey-headed woodpecker (Picus canus), Southern Estonia. June.
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Markus Varesvuo / Great Grey owl (Strix nebulosa) perched on Birch tree branch in woodland, Kalajoki, Finland, Scandinavia, July.
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Markus Varesvuo / Great Grey owl (Strix nebulosa) flying through woodlands, Kalajoki, Finland, Scandinavia, July.
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Markus Varesvuo / Great Grey owl (Strix nebulosa) flying through woodlands, Kalajoki, Finland, Scandinavia, July.
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Markus Varesvuo / Great Grey owl (Strix nebulosa) flying through snow covered Birch woodlands, Raahe, Finland, Scandinavia, March.
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Markus Varesvuo / Great Grey Owl (Strix nebulosa) perched amongst birch trees, Hyvinkää, Finland, January 2007
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Barrie Britton / Great Grey Owl (Strix nebulosa) in flight over snow with birch forest behind, Tornio, Finland. Photograph taken on location for BBC Frozen Planet series, March 2009
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Alex Hyde / Peppered Moth (Biston betularia), typical form, camouflaged on birch tree bark. Derbyshire, UK, July.
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Dave Bevan / Grey squirrel (Scirius carolinensis) eating acorn on birch stump, Bedfordshire, UK
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Peter Cairns / European grey wolf (Canis lupus) in snow-laden boreal birch forest, Nord-Trondelag, Norway, captive
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Peter Cairns / European grey wolf (Canis lupus) walking through deep snow in birch forest, Norway, captive, April
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Peter Cairns / European grey wolf (Canis lupus) pair walking through snow in birch forest, Norway, captive, April
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Peter Cairns / RF- European grey wolf (Canis lupus) running through snow in birch forest, Tromso, Norway. Captive, April. (This image may be licensed either as rights managed or royalty free.)
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Peter Cairns / European grey wolf (Canis lupus) walking through deep snow in birch forest, Norway, captive, April
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Peter Cairns / European wolf (Canis lupus) running through snow in birch forest, Tromso, Norway, captive, April
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Peter Cairns / European grey wolf (Canis lupus) running through snow in birch forest, Tromso, Norway, captive, April
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Peter Cairns / European wolf (Canis lupus) running through deep snow in birch forest, Tromso, Norway, captive, April
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Peter Cairns / European grey wolf (Canis lupus) walking through deep snow in birch forest, Norway, captive, April
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Peter Cairns / European wolf (Canis lupus) in birch forest, Tromso, Norway, captive, March 2009
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Peter Cairns / RF- European grey wolf (Canis lupus) running through snow in birch forest, Tromso, Norway. Captive, April. (This image may be licensed either as rights managed or royalty free.)
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Peter Cairns / European grey wolf (Canis lupus) playing in snow in birch forest, Norway, captive, April
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Peter Cairns / European grey wolf (Canis lupus) walking through deep snow in birch forest, Norway, captive, April
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Peter Cairns / European wolf (Canis lupus) in birch forest in snow, Tromso, Norway, captive, April
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Peter Cairns / European grey wolf (Canis lupus) in birch forest in snow, Tromso, Norway, captive, April
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Peter Cairns / European wolf (Canis lupus) running through snow in birch forest, Tromso, Norway, captive, April
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Roy Mangersnes / Great grey owl (Strix nebulosa) in flight from birch forest in Oulu, northern Finland. March.
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Wild Wonders of Europe / Cairns / Great grey owl (Strix nebulosa) peering around birch tree, Bergslagen, Sweden, June 2009
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Chris O'Reilly / Four European grey wolves (Canis lupus lupus) resting on snow-laden mound, captive, Boreal birch forest, Nord-Trondelag, Norway, winter
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Chris O'Reilly / European grey wolf (Canis lupus lupus) two males in snow, captive, Boreal birch forest, Nord-Trondelag, Norway, winter
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Chris O'Reilly / Male European grey wolf (Canis lupus lupus), standing atop a snow-laden mound, captive, Boreal birch forest, Nord-Trondelag, Norway, winter
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Chris O'Reilly / Male European grey wolf (Canis lupus lupus) portrait, Boreal birch forest, captive, Nord-Trondelag, Norway, winter
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Chris O'Reilly / Male European grey wolf (Canis lupus lupus) portrait, Boreal birch forest, captive, Nord-Trondelag, Norway, winter
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Pete Cairns / European wolf (Canis lupus) adult female following scent in boreal birch forest in winter, Bardu, Norway, captive
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Pete Cairns / European wolf (Canis lupus) in boreal birch forest in winter, Nord-Trondelag, Norway. Captive release
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Pete Cairns / European wolf (Canis lupus) in boreal birch forest in snow, Nord-Trondelag, Norway. Captive release
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Pete Cairns / European wolf (Canis lupus) in boreal birch forest in winter, Nord-Trondelag, Norway. Captive release
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Pete Cairns / European wolf (Canis lupus) in boreal birch forest in winter, Nord-Trondelag, Norway. Captive release
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Pete Cairns / European wolf (Canis lupus) in boreal birch forest in winter, Nord-Trondelag, Norway. Captive release
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Pete Cairns / European wolf (Canis lupus) in boreal birch forest in winter, Nord-Trondelag, Norway. Captive release
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Pete Cairns / European wolf (Canis lupus) in boreal birch forest in winter, Nord-Trondelag, Norway. Captive release
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DAVID TIPLING / Great Grey Owl {Strix nebulosa} perched in a stand of Birch trees in winter, Finland.
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Duncan Mcewan / Grey dagger moth (Acronicta psi) larva / caterpillar on birch tree twig, UK
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Konrad Wothe / Timber Wolf (Canis lupus) camouflaged amid birch forest in winter, Colorado
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Konrad Wothe / Timber Wolf (Canis lupus) camouflaged amid birch forest, North America
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Sven Zacek / Great grey owl (strix nebulosa) perched on Birch (Betula pendula) branch defecating, Southern Estonia.
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Erlend Haarberg / Mountain birch (Betula pubescens) peeling bark, close up, Rapa delta, Laponia, Sweden. May. Glanzlichter Photo Competition 2022 - The Beauty of Plants Category - Highly Commended.
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Tony Wu / Close-up view of Siberian flying squirrel (Pteromys volans orii) finishing eating meal of male catkins from Erman's birch tree (Betula ermanii). Hokkaido, Japan. February.
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Tony Wu / Siberian flying squirrel (Pteromys volans orii) consuming male catkins from Erman's birch tree (Betula ermanii). Hokkaido, Japan. February.
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Tony Wu / Siberian flying squirrel (Pteromys volans orii) consuming male catkins from Erman's birch tree (Betula ermanii). Hokkaido, Japan. February.
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Tony Wu / Siberian flying squirrel (Pteromys volans orii) eating male catkin from Erman's birch tree (Betula ermanii) on snowy day. Hokkaido, Japan. February.
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Tony Wu / Siberian flying squirrel (Pteromys volans orii) eating male catkins of Erman's birch tree (Betula ermanii). Hokkaido, Japan. February.
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Tony Wu / Siberian flying squirrel (Pteromys volans orii) plucking out and consuming male catkins of Erman's birch (Betula ermanii) from stashed food in unused bird's nest. Unusual behaviour. Hokkaido...
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Tony Wu / Female Siberian flying squirrel (Pteromys volans orii) consuming small branches of Erman's birch tree (Betula ermanii) that it has brought back to nest as takeaway meal. Hokkaido, Japan. February...
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Tony Wu / Siberian flying squirrel (Pteromys volans orii) making its final approach back to nest, a narrow crack in Erman's birch (Betula ermanii) tree, Hokkaido, Japan. March.
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Robert Thompson / Birch emperor moth (Rinaca lindia) resting on a tree trunk, Khyber-Pakhtunkhwa Province, Pakistan.
Nick Upton / Siberian flying squirrel (Pteromys volans) wearing a radiocollar hangs on the trunk of a Downy birch tree (Betula pubescens) near its nest hole in mature mixed forest, near Iisaku, Estonia, April.