English Trochilidae - Hummingbirds, by German Biologist, Ernst Haeckel, published in Art Forms in Nature, 1904, Illustrated Plate 99 French Peinture de
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DescriptionHaeckelTrochilidae text.JPG Full text description (in German) of: Date 1904 Source Kunstformen der Natur (1904), plate 99: Trochilidae Author