Gefangene Vögel : mit Baldamus ... [et al.] und anderen bewährten Vogelwirten des In-und Auslandes - Brehm, Alfred Edmund, 1829 -1884 (C.F. Winter'sche Verlagshandlung, 1872)

Die Gefiederte Welt (VFV Verbands- und Fachschriftenverlag GmbH & Co. [etc.], 1894)

Die Gefiederte Welt (VFV Verbands- und Fachschriftenverlag GmbH & Co. [etc.], 1916)

The genera of birds : comprising their generic characters, a notice of the habits of each genus, and an extensive list of species referred to their several genera - Gray, George Robert, 1808 -1872 (Longman, Brown, Green, and Longmans, 1844)

A general history of birds - Latham, John, 1740 -1837 (Printed by Jacob and Johnson, for the author : sold in London by G. and W.B. Whittaker ... [and 3 others], 1823)

General index to A hand-list of the genera and species of birds - Sharpe, Richard Bowdler, 1847 -1909 (British Museum (Natural History), 1912)

General zoology, or Systematic natural history - Stephens, James Francis, 1792 -1853 (Printed for G. Kearsley, 1825)

General zoology, or Systematic natural history - Stephens, James Francis, 1792 -1853 (Printed for G. Kearsley, 1826)

The geographical distribution of animals : with a study of the relations of living and extinct faunas as elucidating the past changes of the earth's surface - Wallace, Alfred Russel, 1823 -1913 (Macmillan, 1876)

The geographical distribution of animals : with a study of the relations of living and extinct faunas as elucidating the past changes of the earth's surface - Wallace, Alfred Russel, 1823 -1913 (Macmillan and Co, 1876)

Geographical distribution of animals : with a study of the relations of living and extinct faunas as elucidating the past changes of the earth's surface - Wallace, Alfred Russel, 1823 -1913 (Macmillan, 1876)

The geographical distribution of animals. With a study of the relations of living and extinct faunas as elucidating the past changes of the earth's surface - Wallace, Alfred Russel, 1823 -1913 (Harper and brothers, 1876)

The geographical distribution of animals, with a study of the relations of living and extinct faunas as elucidating the past changes of the earth's surface - Wallace, Alfred Russel, 1823 -1913 (Macmillan and Co, 1876)

The geographical distribution of animals with a study of the relations of living and extinct faunas as elucidating the past changes of the earth's surface - Wallace, Alfred Russel, 1823 -1913 (Macmillan, 1876)

Geographical variation in birds of Java - Nuttall Ornithological Club. (Nuttall Ornithological Club, 1996)

Giornale di scienze naturali ed economiche - Istituto tecnico di Palermo. (Istituto tecnico di Palermo, 1871)

Glasnik Hrvatskoga naravoslovnoga društva - Hrvatsko prirodoslovno društvo. (Vlastnitvo i naklada drutva, 1886-1907, 1890)

A global directory of tropical montane cloud forests. Draft - Aldrich, Mark (WCMC, 1997)

Die Grösse und Farbe der Augen aller europäischen Vögel, sowie der in der palaearctischen Region vorkommenden Arten in systematischer Ordnung nach Carl J. Sundevall's Versuch einer natürlichen Aufstellung der Vögelklasse - Meves, Wilhelm. (W. Schlüter, 1888)

Grundzüge der Zoologie - Claus, Carl, 1835 -1899 (N. G. Elwert'sche, 1876)

Grundzüge der Zoologie. Zum Gebrauche an Universitäten und hoheren Lehranstalten sowie qum Selbststudium - Claus, Carl, 1835 -1899 (W.G Elevert'sche Verl, 1876)

Grundzüge der Zoologie. Zum gebrauche an universitäten und höheren lehranstalten sowie zum selbststudium - Claus, Carl, 1835 -1899 (N.G. Elwert, 1872)

Grundzüge der Zoologie. Zum wissenschaftlichen Gebrauche - Claus, Carl, 1835 -1899 (Elwert, 1882)

Guide to the birds of Europe and North Africa. With a biographical memoir by William Eagle Clarke - Wardlaw Ramsay, R. G. (Robert George), 1852 -1921 (Gurney and Jackson, 1923)

A guide to the birds of Nepal - Inskipp, Tim (Christopher Helm (Publishers) Ltd, 1985)

Guide to the gallery of birds in the department of zoology, British Museum (Natural History) - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees, 1921)

Guide to the gallery of birds in the Department of zoology, British museum (Natural history) - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees, 1910)

Guide to the gallery of birds in the Department of Zoology of the British Museum (Natural History) - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees, 1905)

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, 1871)

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, 1869)

A hand-list of genera and species of birds of the Indian empire - Bombay Natural History Society. (Printed by order of the committee of the Bombay Natural History Society, 1923)

A hand-list of the birds of Japan - Ogawa, Minori. (1908)

A hand-list of the birds of the Philippine Islands - McGregor, Richard C. (Richard Crittenden), 1871 -1936 (Bureau of printing, 1906)

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, 1903)