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

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

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)

Western United States, 1918 : To obtain information on breeding waterfowl and the economic value of bats; Field diaries, 18 May - 26 September 1918 - Wetmore, Alexander, 1886 -1978 (1918)

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

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

Wild Norway; with chapters on Spitzbergen, Denmark, etc - Chapman, Abel, 1851 -1929 (Arnold, 1897)

Wildlife and fisheries habitat improvement handbook - United States. Forest Service. Wildlife; Fisheries Staff. (U.S. Dept. of Agriculture, Forest Service, Wildlife and Fisheries, 1990)

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

William Brewster correspondence. Letters from Robert Ridgway - Ridgway, Robert, 1850 -1929 (1887)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1913)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1917)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1959)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1960)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1961)

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

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1973)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1974)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1975)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1978)

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

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

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1982)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1984)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1986)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1988)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1992)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1994)

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

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, 2003)

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

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2008)

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, 2011)

The winter birds of Minnesota - Roberts, Thomas S. (Thomas Sadler), 1858 -1946 (1881)

The woodpeckers - Fuertes, Louis Agassiz, 1874 -1927 (Houghton, Mifflin and company, 1901)

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