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David C Walker 1967: Arctic Tern with stormy sky
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David C Walker 1967: Gannets in flight
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David C Walker 1967: Arctic Tern in flight
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David C Walker 1967: Tern Attack
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David C Walker 1967: Tern attack - coming under fire
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David C Walker 1967: Arctic Tern - wings of an angel
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David C Walker 1967: Arctic Tern
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David C Walker 1967: Arctic Tern
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David C Walker 1967: Arctic Tern squabble
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David C Walker 1967: Arctic Term