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

Western birds - California Field Ornithologists. (California Field Ornithologists, 1982)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1984)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1985)

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

Western birds - California Field Ornithologists. (California Field Ornithologists, 1987)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1988)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1989)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1990)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1991)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1993)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1994)

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

Western birds - California Field Ornithologists. (California Field Ornithologists, 1996)

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

Western birds - California Field Ornithologists. (California Field Ornithologists, 1998)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1999)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2000)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2001)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2002)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2003)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2004)

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

Western birds - California Field Ornithologists. (California Field Ornithologists, 2006)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2007)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2008)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2009)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2010)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2011)

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

Western birds - California Field Ornithologists. (California Field Ornithologists, 2013)

Western birds - California Field Ornithologists. (California Field Ornithologists, 2014)

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

Western birds - Myers, Harriet Williams. (The Macmillan company, 1922)

What bird is that? A pocket museum of the land birds of the eastern United States, arranged according to season - Chapman, Frank M. (Frank Michler), 1864 -1945 (D. Appleton, 1920)

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)

Wild birds in city parks; being hints on identifying 200 birds, prepared primarily for the spring migration in Lincoln Park, Chicago, but adapted to other localities - Walter, Alice Hall. (Press of the St. Johnsbury republican co.], 1910)

Wild life in Canada - Buchanan, Angus, 1886 -1954 (McClelland, Goodchild and Stewart, 1920)

Wild life in Canada - Buchanan, Angus, 1886 -1954 (F. A. Stokes, 1920)

Wild life of orchard and field - Ingersoll, Ernest, 1852 -1946 (Harper & brothers, 1902)

The wilderness of the upper Yukon : a hunter's explorations for wild sheep in sub-arctic mountains - Sheldon, Charles, 1867 -1928 (T. Fisher Unwin, 1911)

The wilderness of the upper Yukon; a hunter's explorations for wild sheep in sub-arctic mountains - Sheldon, Charles, 1867 -1928 (C. Scribner's sons, 1911)

Wildlife of the Mackenzie Delta region - Casselman, Lisa M. (Boreal Institute for Northern Studies, University of Alberta, 1984)

The Willughby Society [publications] - Scopoli, Giovanni Antonio, 1723 -1788 (The Society, 1882)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1897)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1899)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1902)