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Evolution of the colors of North American land birds - Keeler, Charles, 1871 -1937 (California Academy of Sciences, 1893)

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Excursionbuch : oder, Anleitung alle Körper der drei Naturreiche zu sammeln, zuzubereiten, in Sammlungen aufzustellen und zu erhalten, nebst einer systematischen Übersicht der drei Naturreiche als Hilfsbuch für Lehrende und Lernende - Glasl, Carl. (W. Braumüller, 1863)

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Faune de Madagascar 35 Oiseaux - Milon, Philippe (1973)