Tony Heald / Glaucous Gull (Larus hyperboreus) taking off from ice, Svalbard Norway, July.
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Ingo Arndt / Glaucous winged gull (Larus glaucescens) calling, Lake Clark National Park, Alaska, USA, August
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Alan Murphy / Glaucous Gull (Larus hyperboreus) striking at a fish while in flight, British Columbia, Canada
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Roy Mangersnes / Glaucious gull (Larus hyperboreus) flying against a blue glacier front, Spitsbergen, Svalbard, Norway, September
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Ole Jorgen Liodden / Glaucous Gull (Larus hyperboreus) on blue ice. Spitsbergen, Svalbard, July.
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Ole Jorgen Liodden / Polar Bear (Ursus maritimus) with blooded face looking at Glaucous Gull (Larus hyperboreus) in flight. Spitsbergen, Svalbard, July.
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Wild Wonders of Europe / de la Lez / Glaucous gull (Larus hyperboreus) in flight, Moselbukta, Svalbard, Norway, July 2008
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Wild Wonders of Europe / de la Lez / Glaucous gull (Larus hyperboreus) in flight, Moselbukta, Svalbard, Norway, July 2008
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Wild Wonders of Europe / Liodden / Two Glaucous gulls (Larus hyperboreus) flying past a glacier, Spitsbergen, Svalbard, March 2009