Grønlands fugle - Winge, H. (Herluf) (s.n.], 1898)

Grønlands landarthropoder (Insecta et Arachnida Groenlandicæ) - Henriksen, Kai Ludvig, 1888 - (Bianco Lunos bogtrykkeri, 1917)

Grundiss der Naturgeschichte : Für Gymnasien und höhere Bürgerschulen - Burmeister, Hermann, 1807 -1892 (bei G. Reimer, 1836)

Grundriss der Physiologie - Rudolphi, Karl Asmund, 1771 -1832 (Dümmler, 1821)

Grundzüge der Paläontologie (Paläzoologie)/ von Karl A. von Zittel ... - Zittel, Karl Alfred von, 1839 -1904 (Druck und verlag von R. Oldenbourg, 1903)

Grundzüge der systematischen Naturgeschichte für seine Zuhörer - Gravenhorst, J. L. C. (Johann Ludwig Christian), 1777 -1857 (bei Willibald August Holäufer, 1817)

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

Grundzüge der Zoologie zum Gebrauche an Universitäten und höhern Lehranstalten : Leitfaden zur Einführung in das wissenschaftliche Studium der Zoologie - Claus, Carl, 1835 -1899 (N.G. Elwert'sche Universitäts- Buchhandlung, 1868)

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 New England and eastern New York : containing a key for each season and short descriptions of over 250 species, with particular reference to their appearance in the field - Fuertes, Louis Agassiz, 1874 -1927 (Houghton, Mifflin and Company, 1904)

Guide to the birds of the Caucasus - Satunin, Konstantin Alekseevich (1907)

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)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1926)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1992)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 2001)

Hamlyn's menagerie magazine (1917)

Hand-book to the birds of Great Britain - Sharpe, Richard Bowdler, 1847 -1909 (Allen, 1896)

Hand-book to the birds of Great Britain - Sharpe, Richard Bowdler, 1847 -1909 (Allen, 1895)

A hand-book to the birds of Great Britain - Sharpe, Richard Bowdler, 1847 -1909 (E. Lloyd, Limited, 1896)

A hand-book to the game-birds - Ogilvie-Grant, W. R. (William Robert), 1863 -1924 (W.H. Allen & Co, 1895)

A hand-book to the game-birds - Ogilvie-Grant, W. R. (William Robert), 1863 -1924 (E. Lloyd, 1896)

A hand-list of British birds, with an account of the distribution of each species in the British Isles and abroad - Jourdain, F. C. R. (Francis Charles Robert), 1865 -1940 (Witherby, 1912)

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)