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Sylvia atricapilla. Sylvia atricapilla Source biologie unihamburg de htm aus NAUMANN NATURGESCHICHTE DER VGEL MITTELEUROPAS Band II Tafel Gera digitale Bearbeitung Peter Sengbusch bonline botanik unihamburg de According to the de page Beschreibung Mnchsgrasmcke Sylvia atricapilla Quelle aus Naumann Naturgeschichte der Vgel