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Jeroen Gerdes: Recurvirostra avosetta
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Jeroen Gerdes: Recurvirostra avosetta
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Jeroen Gerdes: Sterna hirundo
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Jeroen Gerdes: Sterna hirundo
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Jeroen Gerdes: Sterna hirundo
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Jeroen Gerdes: Sterna hirundo
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Jeroen Gerdes: Branta leucopsis
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Jeroen Gerdes: Recurvirostra avosetta
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Jeroen Gerdes: Thalasseus sandvicensis
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Jeroen Gerdes: Thalasseus sandvicensis