English: Aquatic warbler (Acrocephalus paludicola). Singing male in its breeding ground (Bagno Lawki, Trzcianne, Podlaskie Voivodeship, Poland)
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Persönliche Übermittlung an CWitte. Das Bild wurd mit der Bitte zur Bereitstellung in den Wikimedia Commons vom Autor unter unten genannter Lizenz übermittelt.
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