Wild Wonders of Europe / O. Haarberg / Common eider (Somateria mollissima) pair, Jkulsrln glacial lagoon, Iceland, June 2008
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Erlend Haarberg / Rock ptarmigan (Lagopus muta) in snow near glacier, Iceland, August 2010
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Roger Powell / Lesser black-backed gull (Larus fuscus) on cliff with Little Skellig gannetry in the background, Great Skellig island, Co Kerry, Republic of Ireland, June 2011
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Wild Wonders of Europe / Hermansen / Shag (Phalacrocorax aristotelis) on cliff, Saltee Islands, County Wexford, Republic of Ireland, June 2009
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Wild Wonders of Europe / Hermansen / Rock dove (Columba livia) on cliff top, Saltee Islands, County Wexford, Republic of Ireland, June 2009
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Wild Wonders of Europe / Hermansen / Shags (Phalacrocorax aristotelis) standing on coastal cliff, Saltee Islands, County Wexford, Republic of Ireland, June 2009
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Wild Wonders of Europe / Unterthiner / Eleonora's falcon (Falco eleonorae) perched on rock, Andros, Greece, September 2008
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Wild Wonders of Europe / O Haarberg / Northern gannet (Morus bassanus) colony on a sea stack, Langanes peninsula, Iceland, May 2008
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Tom Vezo / Least Auklet {Aethia pusilla} perched on cliff edge, Alaska. Saint Paul Island
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Tom Vezo / Herring gull {Larus argentatus} perched in rock on cliff edge, Newfoundland, Canada
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Tom Vezo / Least Auklet {Aethia pusilla} perched on cliff edge, Alaska. Saint Paul Island
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Roger Powell / Northern gannets (Morus bassanus) flying above breeding colony, Great Saltee Island, Wexford, Republic of Ireland, June