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Alca torda Alle allePL. Alca torda Tordalk links Alle alle Krabbentaucher rechts Bild aus Naumann Naturgeschichte der Vgel Mitteleuropas Band XII Tafel Gera Razorbill Alca torda left and Little Auk Alle alle right This image comes from the book Naumann Naturgeschichte der Vgel Mitteleuropas Natural history of the birds of central