The African Republic of Liberia and the Belgian Congo : based on the observations made and material collected during the Harvard African Expedition, 1926-1927 - Strong, Richard P. (Richard Pearson), 1872 -1948 (Harvard University Press, 1930)

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Annals of the Transvaal Museum - Transvaal Museum (Transvaal Museum, 1910)

Annals of the Transvaal Museum - Transvaal Museum (Transvaal Museum, 1913)

Annals of the Transvaal Museum - Transvaal Museum (Transvaal Museum, 1913)

Annals of the Transvaal Museum - Transvaal Museum (Transvaal Museum, 1917)

Annals of the Transvaal Museum - Transvaal Museum (Transvaal Museum, 1921)

Annals of the Transvaal Museum - Transvaal Museum (Transvaal Museum, 1921)

Annals of the Transvaal Museum - Transvaal Museum (Transvaal Museum, 1921)

Annals of the Transvaal Museum - Transvaal Museum (Transvaal Museum, 1921)

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Archiv für Naturgeschichte (Nicolai, 1896)

Archiv für Naturgeschichte (Nicolai, 1897)

Archiv für Naturgeschichte (Nicolai, 1902)

Archiv für Naturgeschichte (Nicolai, 1902)

Archiv für Naturgeschichte (Nicolai, 1904)

Archiv für Naturgeschichte (Nicolai, 1911)

Archiv für Naturgeschichte (Nicolai, 1911)

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Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1909)

Bibliotheca zoologica [I] Verzeichniss der schriften ©ơber zoologie, welche in den periodischen werken enthalten und vom jahre 1846-1860 selbst©Þndig erschienen sind. Mit einschluss der allgemein-naturgeschichtlichen, periodischen und paleontologischen schriften - Carus, Julius Victor, 1823 -1903 (W. Engelmann, 1861)

Bibliotheca zoologica [I] Verzeichniss der Schriften über zoologie, welche in den Periodischen werken enthalten und vom Jahre 1846-1860 selbständig erschienen Sind - Carus, Julius Victor, 1823 -1903 (W. Engelmann, 1861)

The birds of Africa, comprising all the species which occur in the Ethiopian region - Sclater, William Lutley, 1863 -1944 (Published for the author by R.H. Porter (18 Princes Street, Cavendish Square, W.), 1896)

The birds of South Africa - Sclater, William Lutley, 1863 -1944 (R. H. Porter, 1903)

The birds of South Africa - Sclater, William Lutley, 1863 -1944 (R. H. Porter, 1903)

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Bulletin - United States National Museum (G.P.O, 1930)

Bulletin - United States National Museum (G.P.O, 1930)

Bulletin - United States National Museum (G.P.O, 1930)

Bulletin - United States National Museum (G.P.O, 1930)

Bulletin - United States National Museum (G.P.O, 1930)

Bulletin - United States National Museum (G.P.O, 1930)

Bulletin - United States National Museum (G.P.O, 1930)

Bulletin - United States National Museum (G.P.O, 1930)

Bulletin - United States National Museum (G.P.O, 1930)

Bulletin - United States National Museum (G.P.O, 1955)

Bulletin - United States National Museum (G.P.O, 1955)

Bulletin - United States National Museum (G.P.O, 1955)

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Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1973)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1973)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1973)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1973)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1978)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1978)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1978)

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Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1984)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1984)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1984)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1984)

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Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1987)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1987)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1987)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1987)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1987)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1987)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1987)

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Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1989)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1989)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1989)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1989)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1989)

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Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2002)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2002)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2002)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2002)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2002)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2002)

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Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1936)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1937)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1937)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1937)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1937)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1937)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1937)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1937)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1937)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1937)

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The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1900)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1900)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1900)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1900)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1900)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1900)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

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Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1948)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1987)

The chewing lice : world checklist and biological overview - Price, Roger D. (Illinois Natural History Survey, 2003)

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Fieldiana. Zoology - Field Museum of Natural History. (Chicago Natural History Museum, 1961)

Fieldiana. Zoology - Field Museum of Natural History. (Chicago Natural History Museum, 1961)

Fieldiana. Zoology - Field Museum of Natural History. (Chicago Natural History Museum, 1961)

Fieldiana. Zoology - Field Museum of Natural History. (Chicago Natural History Museum, 1961)

Die Gefiederte Welt (VFV Verbands- und Fachschriftenverlag GmbH & Co. [etc.], 1914)

Die Gefiederte Welt (VFV Verbands- und Fachschriftenverlag GmbH & Co. [etc.], 1920)

Hand-list of genera and species of birds : distinguishing those contained in the British Museum - Gray, George Robert, 1808 -1872 (printed by order of the Trustees, 1870)

Hand-list of genera and species of birds : distinguishing those contained in the British Museum - Gray, George Robert, 1808 -1872 (printed by order of the Trustees, 1902)

A hand-list of the genera & species of birds. (Nomenclator avium tum fossilium tum viventium) - Sharpe, Richard Bowdler, 1847 -1909 (Printed by order of the Trustees, 1900)

Handbuch der Oologie. Lief. 1-47 / v.1-4 - Meise, Wilhelm (Akademie-Verlag, 1960)

Handbuch der Oologie. Lief. 1-47 / v.1-4 - Meise, Wilhelm (Akademie-Verlag, 1960)

Handbuch der Oologie. Lief. 1-47 / v.1-4 - Meise, Wilhelm (Akademie-Verlag, 1960)

Handbuch der Oologie. Lief. 1-47 / v.1-4 - Meise, Wilhelm (Akademie-Verlag, 1960)

Handbuch der Oologie. Lief. 1-47 / v.1-4 - Meise, Wilhelm (Akademie-Verlag, 1960)

Handbuch der Oologie. Lief. 1-47 / v.1-4 - Meise, Wilhelm (Akademie-Verlag, 1960)

Handbuch der Oologie. Lief. 1-47 / v.1-4 - Meise, Wilhelm (Akademie-Verlag, 1960)

Handbuch der zoologie - Carus, Julius Victor, 1823 -1903 (W. Engelmann, 1875)

Handbuch der zoologie - Carus, Julius Victor, 1823 -1903 (W. Engelmann, 1875)

Handbuch der zoologie - Carus, Julius Victor, 1823 -1903 (W. Engelmann, 1868)

The Humming bird - Boucard, Adolphe, 1839 -1905 (A. Boucard, 1894)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1889)

Index generum avium. A list of the genera and subgenera of birds - Waterhouse, Frederick Herschel, 1845 -1919 (R. H. Porter, 1889)

Index generum avium : a list of the genera and subgenera of birds - Waterhouse, Frederick Herschel, 1845 -1919 (R.H. Porter, 1889)

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Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1855)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1877)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1878)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1878)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1878)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1885)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1887)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1889)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1890)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1890)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1890)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1868)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1896)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1904)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1904)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1906)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1910)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1910)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1911)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1911)

Journal für Ornithologie - Deutsche Ornithologen-Gesellschaft (Friedländer, 1914)

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Memoirs of the California Academy of Sciences - California Academy of Sciences (The Academy, 2004)

Methodi naturalis avium disponendarum tentamen. Försök till fogelklassens naturenliga uppställnung - Sundevall, Carl J., 1801 -1875 (Samson & Wallin, 1872)

Mittheilungen von Forschungsreisenden und Gelehrten aus den deutschen Schutzgebieten : mit Benutzung amtlicher quellen (U. Usher, 1890)

Die Naturgeschichte des Thierreichs - Giebel, C. (Christoph), 1820 -1881 (Wigand, 1860)

Nomenclator Musei Heineani Ornithologici; Verzeichniss der Vogel-Sammlung des Kgl. Oberamtmanns Ferdinand Heine - Reichenow, Anton, 1847 -1941 (R. Friedländer & Sohn, 1890)

Nomenclator zoologicus continens nomina systematica generum animalium tam viventium quam fossilium, secundum ordinem alphabeticum disposita, sub auspiciis et sumptibus C. R. Societatis zoologico-botanicae conscriptus a comite Augusto de Marschall - Marschall, August Friedrich, 1804 -1887 (typis C. Ueberreuter (M. Salzer), 1873)

Nomenclator zoologicus continens nomina systematica generum animalium tam viventium quam fossilium, secundum ordinem alphabeticum disposita, sub auspiciis et sumptibus C. R. Societatis zoologico-botanicae conscriptus a comite Augusto de Marschall - Marschall, August Friedrich, 1804 -1887 (typis C. Ueberreuter (M. Salzer), 1873)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1900)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1900)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1918)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1918)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1922)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1922)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1922)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1922)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1922)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1922)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1922)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1922)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1922)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1925)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1925)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1925)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1925)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1931)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1931)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1931)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1931)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1931)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1931)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1931)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1931)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1941)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1944)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1973)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1957)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1958)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1958)

Ornithologie Nordost-Afrika's : der Nilquellen- und Küsten Gebiete des Rothen Meeres und des nördlichen Somal-Landes - Heuglin, Theodor von, 1824 -1876 (T. Fischer, 1869)

Ornithologie Nordost-Afrika's : der Nilquellen- und Küsten Gebiete des Rothen Meeres und des nördlichen Somal-Landes - Heuglin, Theodor von, 1824 -1876 (T. Fischer, 1869)

Ornithologie Nordost-Afrika's : der Nilquellen- und Küsten Gebiete des Rothen Meeres und des nördlichen Somal-Landes - Heuglin, Theodor von, 1824 -1876 (T. Fischer, 1871)

Ornithologie Nordost-Afrika's : der Nilquellen- und Küsten Gebiete des Rothen Meeres und des nördlichen Somal-Landes - Heuglin, Theodor von, 1824 -1876 (T. Fischer, 1871)

Ornithologie Nordost-Afrika's : der Nilquellen- und Küsten Gebiete des Rothen Meeres und des nördlichen Somal-Landes - Heuglin, Theodor von, 1824 -1876 (T. Fischer, 1874)

Ornithologie Nordost-Afrika's : der Nilquellen- und Küsten Gebiete des Rothen Meeres und des nördlichen Somal-Landes - Heuglin, Theodor von, 1824 -1876 (T. Fischer, 1873)

Ornithologische Monatsberichte (Verlag von R. Friedländer & Sohn, 1893)

Ornithologische Monatsberichte (Verlag von R. Friedländer & Sohn, 1903)

Ornithologische Monatsberichte (Verlag von R. Friedländer & Sohn, 1903)

Ornithologische Monatsberichte (Verlag von R. Friedländer & Sohn, 1905)

Ornithologische Monatsberichte (Verlag von R. Friedländer & Sohn, 1905)

Per una classificazione elementare dei Passercei, Rampicanti e Trogoni, raccolta e ordinamento di alcuni caratteri - Cavazza, Filippo. (Tipografia di Paolo Neri, 1909)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 1968)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1841)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1841)

Proceedings of the International Ornithological Congress (Australian Academy of Science [etc.], 1990)

Proceedings of the International Ornithological Congress (Australian Academy of Science [etc.], 1990)

Proceedings of the International Ornithological Congress (Australian Academy of Science [etc.], 1990)

Proceedings of the International Ornithological Congress (Australian Academy of Science [etc.], 1990)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1905)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1929)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1931)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1934)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1957)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1957)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1960)

Revue et magasin de zoologie pure et appliquée - Société Cuvierienne. (Bureau de la Revue et Magasin de Zoologie, 1855)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1880)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1880)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1898)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1898)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1898)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1898)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1898)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1898)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1898)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1898)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1898)

Revue zoologique africaine (Hayez, 1918)

Revue zoologique africaine (Hayez, 1922)

Revue zoologique africaine (Hayez, 1922)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1971)

Rivista italiana di ornitologia - Museo civico di storia naturale di Milano. (Società italiana di scienze naturali, 1911)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1991)

Synopsis avium : nouveau manuel d'ornithologie - Dubois, Alphonse, 1839 -1921. (H. Lamertin, 1904)

System der Ornithologie Westafrica's - Hartlaub, Gustav, 1814 -1900 (C. Schünemann, 1857)

System der Ornithologie Westafrica's - Hartlaub, Gustav, 1814 -1900 (C. Schünemann, 1857)

Thesaurus ornithologiae : Repertorium der gesammten ornithologischen Literatur und Nomenclator sämmtlicher Gattungen und Arten der Vögel, nebst Synonymen und geographischer Verbreitung - Giebel, C. (Christoph), 1820 -1881 (Brockhaus, 1877)

Thesaurus ornithologiae : Repertorium der gesammten ornithologischen Literatur und Nomenclator sämmtlicher Gattungen und Arten der Vögel, nebst Synonymen und geographischer Verbreitung - Giebel, C. (Christoph), 1820 -1881 (Brockhaus, 1877)

Thesaurus ornithologiae : Repertorium der gesammten ornithologischen Literatur und Nomenclator sämmtlicher Gattungen und Arten der Vögel, nebst Synonymen und geographischer Verbreitung - Giebel, C. (Christoph), 1820 -1881 (Brockhaus, 1877)

Das Tierreich - Heck, Ludwig, 1860 -1951 (W. Pauli, 1894)

Type-specimens of birds in the British Museum (Natural History) - British Museum (Natural History) (BM(NH), 1966)

Type-specimens of birds in the British Museum (Natural History) - British Museum (Natural History) (BM(NH), 1966)

Type-specimens of birds in the British Museum (Natural History) - British Museum (Natural History) (BM(NH), 1973)

Type-specimens of birds in the British Museum (Natural History) - British Museum (Natural History) (BM(NH), 1973)

Über das System und die Charakteristik der natürlichen Familien der Vögel - Fitzinger, Leopold Joseph, 1802 -1884 (Kais. Kön. Hof- und Staatsdruckerei, 1856)

The Uganda protectorate; an attempt to give some description of the physical geography, botany, zoology, anthropology, languages and history of the territories under British protection in East Central Africa, between the Congo Free State and the Rift Valley and between the first degree of south latitude and the fifth degree of north latitude - Johnston, Harry, 1858 -1927 (Hutchinson & Co, 1902)

Die Vögel; Handbuch der systematischen Ornithologie - Reichenow, Anton, 1847 -1941 (F. Enke, 1913)

Die Vögel; Handbuch der systematischen Ornithologie - Reichenow, Anton, 1847 -1941 (F. Enke, 1914)

Die Vögel; Handbuch der systematischen Ornithologie - Reichenow, Anton, 1847 -1941 (F. Enke, 1914)

Die Vögel; Handbuch der systematischen Ornithologie - Reichenow, Anton, 1847 -1941 (F. Enke, 1914)

Die Vögel; Handbuch der systematischen Ornithologie - Reichenow, Anton, 1847 -1941 (F. Enke, 1914)

Die Vögel; Handbuch der systematischen Ornithologie - Reichenow, Anton, 1847 -1941 (F. Enke, 1914)

Die Vögel; Handbuch der systematischen Ornithologie - Reichenow, Anton, 1847 -1941 (F. Enke, 1914)

Die Vögel; Handbuch der systematischen Ornithologie - Reichenow, Anton, 1847 -1941 (F. Enke, 1914)

Die Vögel; Handbuch der systematischen Ornithologie - Reichenow, Anton, 1847 -1941 (F. Enke, 1914)

Die Vögel; Handbuch der systematischen Ornithologie - Reichenow, Anton, 1847 -1941 (F. Enke, 1914)

Die Vögel; Handbuch der systematischen Ornithologie - Reichenow, Anton, 1847 -1941 (F. Enke, 1914)

Die Vögel; Handbuch der systematischen Ornithologie - Reichenow, Anton, 1847 -1941 (F. Enke, 1914)

Die Vögel; Handbuch der systematischen Ornithologie - Reichenow, Anton, 1847 -1941 (F. Enke, 1914)

Die Vögel; Handbuch der systematischen Ornithologie - Reichenow, Anton, 1847 -1941 (F. Enke, 1914)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1900)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1900)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1902)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1902)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1902)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1902)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1902)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1902)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1902)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1902)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1903)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1903)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1903)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1903)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1903)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1903)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1903)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1903)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1903)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1903)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1903)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1904)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1905)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1905)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1905)

Die Vögel der zoologischen Gärten : Leitfaden zum Studium der Ornithologie mit besonderer Berücksichtigung der in Gefangenschaft gehaltenen Vögel : ein Handbuch für Vogelwirthe - Reichenow, Anton, 1847 -1941 (L.A. Kittler, 1882)

Die Vögel der zoologischen Gärten : Leitfaden zum Studium der Ornithologie mit besonderer Berücksichtigung der in Gefangenschaft gehaltenen Vögel : ein Handbuch für Vogelwirthe - Reichenow, Anton, 1847 -1941 (L.A. Kittler, 1882)

Die Vögel Deutsch-Ost-Afrikas - Reichenow, Anton, 1847 -1941 (Geographische Verlagshandlung Dietrich Reimer, 1894)

Die Vögel Deutsch-Ost-Afrikas - Reichenow, Anton, 1847 -1941 (Geographische Verlagshandlung Dietrich Reimer, 1894)

Die Vögel Deutsch-Ost-Afrikas - Reichenow, Anton, 1847 -1941 (Geographische Verlagshandlung Dietrich Reimer, 1894)

Die Vögel Deutsch-Ost-Afrikas - Reichenow, Anton, 1847 -1941 (Geographische Verlagshandlung Dietrich Reimer, 1894)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1979)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1979)

Zeitschrift für die gesammten Naturwissenschaft - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Wiegandt, Hempel & Parey, 1854)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1911)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1915)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1922)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1922)

Zoologisches Centralblatt (W. Engelmann, 1901)

Zoologisches Centralblatt (W. Engelmann, 1901)