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Jose Frade: Guincho (Larus ridibundus)
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Jose Frade: Guincho - (Larus ridibundus)
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Jose Frade: Guincho (Larus ridibundus)
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Jose Frade: Guincho-comum (Larus ridibundus)
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Jose Frade: Gaivota-de-Audouin (Larus audouinii), Gaivota-d'asa-escura (Larus fuscus) e Guincho-comum (Larus ridibundus)