Two months on the Guadalquiver - Witherby, H. F. (Harry Forbes), 1873 -1944 ("Knowledge"?, 1899)

Übersicht der Säugethiere und Vögel der Kola-Halbinsel - Pleske, F. D. (Feodor Dmitrievich), 1858 -1932 (K. Akademie der Wissenschaften, 1886)

Übersicht der Säugethiere und Vogel der Kola-Halbinsel - Pleske, F. D. (Feodor Dmitrievich), 1858 -1932 (Buchdruckerei der Kaiserlichen Akademie der Wissenschaften, 1886)

Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien - Zoologisch-Botanische Gesellschaft in Wien. (Kaiserlich-Königliche Zoologisch-Botanische Gesellschaft in Wien, 1879)

Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien - Zoologisch-Botanische Gesellschaft in Wien. (Kaiserlich-Königliche Zoologisch-Botanische Gesellschaft in Wien, 1895)

Verhandlungen der Ornithologischen Gesellschaft in Bayern - Ornithologische Gesellschaft in Bayern. (E. Reinhardt, 1914)

Verhandlungen der Ornithologischen Gesellschaft in Bayern - Ornithologische Gesellschaft in Bayern. (E. Reinhardt, 1921)

Verhandlungen und mitteilungen des Siebenbürgischen vereins für naturwissen schaften zu Hermannstadt - Siebenbürgischer Verein für Naturwissenschaften, Hermannstadt. (1900)

The Vertebrate Fauna of "Dee" : the Ichthyological portion includes the Fishes of the east coast from Wick to Firth of Forth - Sim, George. (1903)

A Vertebrate Fauna of Sutherland, Caithness, and West Cromarty - Harvie-Brown, J. A. (John Alexander), 1844 -1916 (1887)

Vertebrate palaeontology of Australasia - Monash University. Publications Committee (Pioneer Design Studio in cooperation with the Monash University Publications Committee, Melbourne, 1991)

The Victorian Naturalist - Field Naturalists' Club of Victoria. (Field Naturalists Club of Victoria, 1923)

The Victorian Naturalist - Field Naturalists' Club of Victoria. (Field Naturalists Club of Victoria, 1971)

The Victorian Naturalist - Field Naturalists' Club of Victoria. (Field Naturalists Club of Victoria, 1972)

The Victorian Naturalist - Field Naturalists' Club of Victoria. (Field Naturalists Club of Victoria, 1996)

The Victorian Naturalist - Field Naturalists' Club of Victoria. (Field Naturalists Club of Victoria, 2001)

The Victorian Naturalist - Field Naturalists' Club of Victoria. (Field Naturalists Club of Victoria, 2002)

The Victorian Naturalist - Field Naturalists' Club of Victoria. (Field Naturalists Club of Victoria, 2011)

The Victorian Naturalist - Field Naturalists' Club of Victoria. (Field Naturalists Club of Victoria, 2016)

Videnskabelige meddelelser fra den Naturhistoriske forening i Kjöbenhavn - Naturhistoriske forening i Kjøbenhavn. (Selskabets Bestyrelse, 1896)

Videnskabelige meddelelser fra den Naturhistoriske forening i Kjöbenhavn - Naturhistoriske forening i Kjøbenhavn. (Selskabets Bestyrelse, 1899)

Videnskabelige meddelelser fra den Naturhistoriske forening i Kjöbenhavn - Naturhistoriske forening i Kjøbenhavn. (Selskabets Bestyrelse, 1905)

Videnskabelige meddellelser - Dansk naturhistorisk forening. (1896)

Videnskabelige meddellelser - Dansk naturhistorisk forening. (1899)

Virginia journal of science - Virginia Academy of Science. (Virginia Academy of Science, Dept. of Physics and Geophysical Science, School of Sciences and Health Professions, Old Dominion University, 1997)

Die Vögel Afrikas - Reichenow, Anton, 1847 -1941 (J. Neumann, 1901)

Die Vögel der paläarktischen Fauna systematische Übersicht der in Europa, Nord-Asien und der Mittelmeerregion vorkommenden Vögel - Hartert, Ernst, 1859 -1933 (R. Friedländer & Sohn, 1914)

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 Vogel Ost-Afrikas. Baron Carl Claus von Deer Decken's Reisen in Ost-Africa. Bd. 4 - Hartlaub, Gustav, 1814 -1900 (C.F. Winter'sche Verlagshandlung, 1870)

Die Vogelfauna des Minussinsk Gebietes, des westlichen Teils des Sajan Gebirges und des Urjanchen-Landes / von P.P. Suschkin ; mit eine Karte - Sushkin, Petr Petrovich, 1868 -1928 (1913)

Wanderings of a naturalist in India : the western Himalayas, and Cashmere - Adams, Andrew Leith, 1827 -1882 (Edmonston & Douglas, 1867)

Welsh bird report - Welsh Ornithological Society. (Welsh Ornithological Society, 1990)

Welsh birds - Welsh Ornithological Society. (Welsh Ornithological Society, 1996)

Welsh birds - Welsh Ornithological Society. (Welsh Ornithological Society, 2002)

Welsh birds - Welsh Ornithological Society. (Welsh Ornithological Society, 2004)

Welsh birds - Welsh Ornithological Society. (Welsh Ornithological Society, 2006)

Welsh birds - Welsh Ornithological Society. (Welsh Ornithological Society, 2010)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1953)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1955)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1959)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1960)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1961)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1971)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1976)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1983)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1984)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1993)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 2003)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1995)

What bird is that? A guide to the birds of Australia - Cayley, Neville W. (Neville William), 1886 -1950 (Angus & Robertson Ltd, 1947)

What bird is that? : A guide to the birds of Australia - Cayley, Neville W. (Neville William), 1886 -1950 (Angus & Robertson, 1931)

Whitney South Sea Expedition. Journal and letters of William F. Coultas - American Museum of Natural History (1929)

Wild birds of the Giza Gardens, 1898-1908 - Nicoll, M. J. (Michael John), 1880 -1925 (National Printing Dept, 1908)

Wild life of the world : a descriptive survey of the geographical distribution of animals - Lydekker, Richard, 1849 -1915 (F. Warne and co, 1916)

Wild Spain (España agreste): records of sport with rifle, rod, and gun; natural history and exploration - Chapman, Abel, 1851 -1929 (Gurney and Jackson, 1893)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1954)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1967)

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

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1985)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1997)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1999)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 2000)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2006)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2007)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2009)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 2000)

Wingspan : newsletter for members of the Raptor Research Foundation - Raptor Research; Technical Assistance Center (U.S.) (Raptor Research & Technical Assistance Center, 1998)

Workshop proceedings: management of western forests and grasslands for nongame birds, February 11-14, 1980, Salt Lake City, Utah - Intermountain Forest; Range Experiment Station (Ogden, Utah) (Intermountain Forest and Range Experiment Station, Rocky Mountain Forest and Range Experiment Station, and Intermountain Region, 1980)

World Checklist of Threatened Birds (1990)

World Checklist of Threatened Birds (1993)

Year book, the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (The Academy, 1923)

Zeitschrift für die gesammte Ornithologie - Madarász, Gyula, 1858 -1931 (Franklin-Verein, 1885)

Zeitschrift fur Oologie (H. Hocke, 1891)

Zeitschrift fur Oologie (H. Hocke, 1898)

Zeitschrift fur Oologie (H. Hocke, 1899)

Zeitschrift fur Oologie (H. Hocke, 1902)

Zeitschrift fur Oologie und Ornithologie (H. Hocke, 1908)

Zeitschrift fur Oologie und Ornithologie (H. Hocke, 1909)

Zeitschrift fur Oologie und Ornithologie (H. Hocke, 1912)

Zeitschrift für Säugetierkunde : im Auftrage der Deutschen Gesellschaft für Säugetierkunde e.V - Deutsche Gesellschaft für Säugetierkunde (Die Gesellschaft, 1994)

Zentralblatt für Zoologie, allgemeine und experimentelle Biologie (B.G. Teubner, 1918)

Zitteliana - Bayerische Staatssammlung für Paläontologie und Historische Geologie München (Komissionsverlag Geiselberger [etc.], 2002)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1891)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1892)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1897)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1899)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1901)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1903)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1916)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1919)

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

Zoologische Ergebnisse einer reise in Niederländisch Ost-Indien - Weber, Max, 1852 -1937 (E.J. Brill, 1893)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1874)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1881)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1901)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1902)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1906)

Zoologischer Anzeiger - Deutsche Zoologische Gesellschaft. (VEB Gustav Fischer Verlag, 1898)

Zoologischer Anzeiger - Deutsche Zoologische Gesellschaft. (VEB Gustav Fischer Verlag, 1903)

Zoologischer Jahresbericht - Stazione zoologica di Napoli. (R. Friedlander, 1883)

Zoologisches Centralblatt (W. Engelmann, 1899)

The Zoologist : a monthly journal of natural history (1867)

The Zoologist : a monthly journal of natural history (1894)

The Zoologist : a monthly journal of natural history (1896)

The Zoologist : a monthly journal of natural history (1898)

The Zoologist : a monthly journal of natural history (1899)

The Zoologist : a monthly journal of natural history (1903)

Zur Morphologie des Vogelskelets : Vergleichende Osteologie der normalen Tagraubvögel (Accipitres) und die Fragen der Classification / von Dr. P. Suschkin - Moskovskoe obshchestvo liubitelei prirody. (Kouchnéreff, 1905)

Известия на Царските природонаучни институти в София = Izvestiia na Tsarskitia prirodonauchni instituti v Sofiia - Tsarskitie prirodonauchni instituti (Sofiia, Bulgaria) (Pechatnitsa P. Glushkov, 1940)

Известия на Царските природонаучни институти в София = Izvestiia na Tsarskitia prirodonauchni instituti v Sofiia - Tsarskitie prirodonauchni instituti (Sofiia, Bulgaria) (Pechatnitsa P. Glushkov, 1942)