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

The Wilson quarterly - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Chapter of the Agassiz Association, 1892)

The winter bird-life of Minnesota; being an annotated list of birds that have been found within the state of Minnesota during the winter months - Roberts, Thomas S. (Thomas Sadler), 1858 -1946 (1916)

Winter sunshine - Burroughs, John, 1837 -1921 (Houghton, Mifflin, 1901)

Winter sunshine - Burroughs, John, 1837 -1921 (Houghton, Mifflin, 1902)

Winter sunshine - Burroughs, John, 1837 -1921 (Houghton, Mifflin and company, 1901)

Wireworms attacking cereal and forage crops - Hyslop, James Augustus, 1884 -1953 (U.S. Dept. of Agriculture, 1915)

With the birds in Maine - Miller, Harriet Mann, 1831 -1918 (Houghton, Mifflin and company, 1904)

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 (1993)

World Checklist of Threatened Birds (1990)

The writings of John Burroughs - Burroughs, John, 1837 -1921 (Houghton, Mifflin, & co, 1895)

The writings of John Burroughs - Burroughs, John, 1837 -1921 (Houghton, Mifflin, & co, 1879)

The writings of John Burroughs - Burroughs, John, 1837 -1921 (Houghton, Mifflin, & co, 1904)

The writings of John Burroughs - Burroughs, John, 1837 -1921 (Houghton, Mifflin, & co, 1913)

The writings of John Burroughs. [v.1-20 - Burroughs, John, 1837 -1921 (Houghton, Mifflin and Co, 1904)

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

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1912)

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 fur Oologie und Ornithologie (H. Hocke, 1912)

Zoe:a biological journal (Zoe Publishing Co, 1890)

Zoe:a biological journal (Zoe Publishing Co, 1893)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1878)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1884)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1886)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1887)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1893)

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, 1903)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1904)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1907)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1909)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1910)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1911)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1912)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1915)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1918)