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

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

Die Vögel der Arktis - Schalow, Herman, 1852 -1925 (s.n, 1904)

Die Vögel der paläarktischen Fauna systematische Übersicht der in Europa, Nord-Asien und der Mittelmeerregion vorkommenden Vögel - Hartert, Ernst, 1859 -1933 (R. Friedländer & Sohn, 1913)

Die Vögel der paläarktischen Fauna systematische Übersicht der in Europa, Nord-Asien und der Mittelmeerregion vorkommenden Vögel - Hartert, Ernst, 1859 -1933 (R. Friedländer & Sohn, 1912)

Die Vögel der Provinz Ostpreussen - Tischler, F. (W. Junk, 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 Vögel Deutsch-Ost-Afrikas - Reichenow, Anton, 1847 -1941 (Geographische Verlagshandlung Dietrich Reimer, 1894)

Die Vogel Europa's : Eine systematische Übersicht der synonymen Gattungen und der einzelnen Arten nach ihrere natürluchen Verwandtschaft zusammengestellt - Selliers, Ludwig. (Kaulfuss Wit., Prandel & Comp, 1844)

Vogel-fauna von Mistek und dessen weiterer Umgebung - Schwab, Adolf. (s.n, 1868)

Die Vögel Neu-Caledoniens und der Loyalty-Inseln - Sarasin, Fritz, 1859 -1942 (C.W. Kreidels, 1913)

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)

Vögel - Selenka, Emil, 1842 -1902 (C.F. Winter, 1893)

De vogels van Guyana (Suriname, Cayenne en Demerara) - Penard, Arthur Philip (E.P. Penard, 1908)

Die vollständigste Naturgeschichte der Vögel - Reichenbach, H. G. Ludwig (Heinrich Gottlieb Ludwig) 1793 -1879 (Expedition der Vollständigsten Naturgeschichte, 1850)

Die vollständigste Naturgeschichte der Vögel Neuhollands : ein Beitrag zur Naturgeschichte Australiens - Reichenbach, H. G. Ludwig (Heinrich Gottlieb Ludwig), 1793 -1879 (Expedition der vollständigsten Naturgeschichte, 1850)

Die wanderheuschrecken und ihre bekämpfung in unseren afrikanischen kolonieen - Sander, Ludwig, 1859 - (D. Reimer (E. Vohsen), 1902)

The Warbler (Mayflower Pub. Co, 1908)

West Virginia birds : distribution and ecology - Hall, George A. (Carnegie Museum of Natural History, 1983)

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, 1996)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1998)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1999)

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

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 2008)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 2009)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 2010)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 2011)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 2012)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 2013)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 2014)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1974)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1976)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1981)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1986)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1997)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2005)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2012)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2015)

What comes from what; or, The relationships of animals and plants - Abbott, Charles L. (The author, 1922)

Wild animals of Glacier National Park. The mammals, with notes on physiography and life zones; The birds - Bailey, Vernon, 1864 -1942 (Govt. print. off, 1918)

Wildlife - Montana. Dept. of Natural Resources; Conservation. (Montana Dept. of Natural Resources and Conservation, 1983)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1946)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1952)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1955)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1962)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1963)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1964)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1965)

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

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1969)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1980)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1981)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1987)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1989)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1991)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1993)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1996)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1998)

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 bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 2002)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 2004)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 2005)

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)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2010)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2012)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1855)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1858)

Wingspan : newsletter for members of the Raptor Research Foundation - Raptor Research; Technical Assistance Center (U.S.) (Raptor Research & Technical Assistance Center, 1999)

Wissenschaftliche Ergebnisse der Deutschen Zentral-Africa-Expedition, 1907-1908 : unter Führung Adolf Friedrichs, Herzogs zu Mecklenburg - Friedrich, Adolf Duke of Mecklenburg-Schwerin, 1873 -1969 (Klinkhardt & Biermann, 1912)

Wissenschaftliche ergebnisse der Schwedischen zoologischen expedition nach dem Kilimandjaro, dem Meru und den umgebenden Massaisteppen Deutsch-Ostafrikas 1905-1906, unter leitung von prof. dr. Yngve Sjöstedt - Sjöstedt, Yngve, 1866 - (Tryckt hos P. Palmquists aktiebolag, 1910)

With flashlight and rifle, a record of hunting adventures and of studies in wildlife in Equatorial East-Africa - Schillings, C. G. (Carl Georg), 1865 -1921 (1906)

With flashlight and rifle : a record of hunting adventures and of studies in wild life in equatorial East Africa - Schillings, C. G. (Carl Georg), 1865 -1921 (Hutchinson and Co, 1906)

With nature and a camera : being the adventures, and observations of a field naturalist and an animal photographer - Kearton, Richard, 1862 -1928 (Cassell and Co. Limited, 1897)

Woodpeckers of the world - Short, Lester L. (Delaware Museum of Natural History, 1982)

World Atlas of Biodiversity: earth's living resources in the 21st century - Groombridge, Brian (UNEP-WCMC, 2002)

World Checklist of Threatened Birds (1990)

World Checklist of Threatened Birds (1993)

Wyoming birds and their value to agriculture - Grave, B. H. (Benjamin Harrison), 1878 -1949 (1916)

xin jiang sheng wu duo yang xing - Yuan, Guoying (xin jiang ke xue ji shu chu ban she, 2008)

A year of Costa Rican natural history - Calvert, Amelia Smith, 1876 -1965 (The Macmillan company, 1917)

A year with the birds; a guide to the naming of 100 birds commonly to be seen in Connecticut - Fuertes, Louis Agassiz, 1874 -1927 (1905)

The Yellowstone National Park - Comstock, Theo. B. (Theodore Bryant), 1849 -1915 (1874)

Yosemite nature notes - United States. National Park Service. (Yosemite Natural History Association, 1922)

Zeitschrift für die gesammte Ornithologie - Madarász, Gyula, 1858 -1931 (Franklin-Verein, 1884)

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

Zeitschrift für die gesammte Ornithologie - Madarász, Gyula, 1858 -1931 (Franklin-Verein, 1887)

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