The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1909)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1913)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1915)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1917)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1919)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1920)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1921)

Contents and index to volume 1 - Cory, Charles B. (Charles Barney), 1857 -1921 (Natural History Museum, 1917)

Contents and index to volume 12, numbers 1 to 19, Zoological series - Field Museum of Natural History. (Field Museum of Natural History, 1929)

Contents and index to volume 7, numbers 1 to 12, Zoological series - Field Museum of Natural History. (Field Museum of Natural History, 1912)

A contribution to the ornithology of northeastern Brazil - Hellmayr, Carl Eduard, 1878 -1944 (1929)

Contribution to the ornithology of San Domingo - Cherrie, George Kruck, 1865 -1946 (1896)

A contribution to the ornithology of the Orinoco region - Cherrie, George Kruck, 1865 -1946 (Pub. for the Brooklyn museum, 1916)

Contributions to the history of North American ornithology - Jackson, Jerome A (Nuttall Ornithological Club, 1995)

Cruise to Northwest Greenland, 1938, "Report on the Scientific Collecting done in Newfoundland, Labrador, Greenland, and the Canadian Arctic, with Field Notes," by David C. Nutt - Schmitt, Waldo L. (Waldo Lasalle), 1887 -1977 (1938)

The Death valley expedition. A biological survey of parts of California, Nevada, Arizona, and Utah. Part II - Stejneger, Leonhard, 1851 -1943 (Govt. print. off, 1893)

Denkschriften der Kaiserlichen Akademie der Wissenschaften / Mathematisch-Naturwissenschaftliche Classe - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (Aus der Kaiserlich-Königlichen Hof- und Staatsdruckerei, 1926)

The development of nestling feathers - Jones, Lynds, 1865 -1951 (1907)

Diaries of William Brewster, 1865-1919 (inclusive) - Brewster, William, 1851 -1919 (1908)

Diaries of William Brewster, 1865-1919 (inclusive) - Brewster, William, 1851 -1919 (1909)

Diaries of William Brewster, 1865-1919 (inclusive) - Brewster, William, 1851 -1919 (1910)

A dictionary of birds - Lydekker, Richard, 1849 -1915 (A. and C. Black, 1896)

A dictionary of birds - Shufeldt, Robert Wilson 1850 -1934 (A. and C. Black, 1896)

A Directory of Neotropical Wetlands (1986)

Directory of Wetlands of International Importance (1987)

Directory of Wetlands of International Importance (1990)

Distribution and migration of North American shorebirds - Fuertes, Louis Agassiz, 1874 -1927 (Govt. Print. Off, 1912)

Distribution and migration of North American shorebirds - Fuertes, Louis Agassiz, 1874 -1927 (U.S. Dept. of Agriculture, Biological Survey, 1910)

The distribution and occurrence of the birds of Jackson County, Oregon, and surrounding areas - Browning, M. Ralph (Fish and Wildlife Service, 1975)

The distribution of bird-life in Colombia; a contribution to a biological survey of South America - Fuertes, Louis Agassiz, 1874 -1927 (Pub. by order of the trustees, 1917)

The distribution of bird life in the Urubamba valley of Peru; a report on the birds collected by the Yale university National geographic society's expeditions - Chapman, Frank M. (Frank Michler), 1864 -1945 (Govt. print. off, 1921)

Distribution, season of use, and habitat of the mammals, birds, reptiles, amphibians, and fishes of Idaho - Wilson, Lanny O. (U.S. Department of the Interior, Bureau of Land Management, Idaho State Office, 1975)

A distributional list of the birds of Montana, with notes on the migration and nesting of the better known species - Saunders, Aretas A. (Aretas Andrews), 1884 -1970 (The Club, 1921)

The Dominion of Canada (s.n, 1900)

Doriana - Museo civico di storia naturale Giacomo Doria (Genoa, Italy) ([Museo civico di storia naturale "G. Doria", 1981)

Draft stateline resource management plan and environmental impact statement : [public land in Clark and Nye County, southern Nevada] - United States. Bureau of Land Management. Las Vegas District. (U.S. Department of the Interior, Bureau of Land Management, Stateline Resource Area, 1992)

Duck and pheasant use of water bank program agreement areas in east-central South Dakota - United States. Soil Conservation Service. (U.S. Dept. of Agriculture, Soil Conservation Service, 1985)

EAC 38-40, Sioux City, March-May 1968 - National Museum of Natural History (U.S.) Pacific Ocean Biological Survey Program (1968)

Ecological infrastructure mapping - southern Alberta region - Alberta. Alberta Environment. (Alberta Environment, 2008)

Ecological land classification of Carson-Pegasus Provincial Park - Alberta. Alberta Environment. (Alberta Environment, 1999)

Ecological resources baseline report : technical report for the White Pine Power Project - United States. Bureau of Land Management. Nevada State Office. (Dames & Moore, 1983)

An ecological survey in northern Michigan - Adams, Charles C. (Charles Christopher), 1873 -1955 (Wynkoop Hallenbeck Crawford co., state printers, 1906)

An ecological survey of Isle Royale, Lake Superior - Adams, Charles C. (Charles Christopher), 1873 -1955 (Wynkoop Hallenbeck Crawford Co., State Printers, 1909)

Ecology of the aspen parkland of western Canada in relation to land use - Bird, Ralph Durham, 1901 -1972 (Research Branch, Canada Dept. of Agriculture, 1961)

Ecology of the coyote in the Yellowstone - United States. National Park Service. (U.S. G.P.O, 1940)

Edward W. Gifford Galapagos expedition journal - Gifford, Edward Winslow, 1887 -1959 (1905)

The effect of altered streamflow on migratory birds of the Yellowstone River Basin, Montana - Montana. Dept. of Fish; Game. (Water Resources Division, Montana Dept. of Natural Resources & Conservation, 1977)

Effects of recreational activity and livestock grazing on habitat use by breeding birds in Cottonwood Forests along the South Fork Snake River - United States. Bureau of Land Management. (Bureau of Land Management, Idaho State Office, 1998)

Eggs of native Pennsylvania birds : a world's fair collection - Jacobs, Joseph Warren, 1868 -1947 (Independent Job Department, 1895)

Die Eier der europaeischen Voegel nach der Natur gemalt - Brehm, L. (Ludwig), 1787 -1864 (Hrsg. und verlegt von J. Baedeker, 1855)

The El Malpais plan : a stand-alone management plan for El Malpais National Conservation area and adjoining lands - United States. Bureau of Land Management. Albuquerque Field Office. (U.S. Department of the Interior, Bureau of Land Management, Albuquerque Field Office, 2001)

Elements of zoology, to accompany the field and laboratory study of animals - Davenport, Charles Benedict, 1866 -1944 (Macmillan, 1911)

Elkhorn Slough Estuarine Sanctuary : proposed estuarine sanctuary grant award for Elkhorn Slough, Monterey County, California - National Ocean Survey. Office of Coastal Zone Management. (U.S. Govt. Print. Off, 1979)

Entomologica Americana - Brooklyn Entomological Society (New York Entomological Society [etc.], 1945)

Entomological news - American Entomological Society. (American Entomological Society, 1953)

Europäische Fauna, oder, Verzeichniss der wirbelthiere Europa's - Schinz, H. R. (Heinrich Rudolf), 1777 -1861 (E. Schweizerbarts Verlagshandlung, 1840)

"Every bird;" a guide to the identification of the birds of woodland, beach and ocean. With one hundred and twenty-four line illustrations - Howe, Reginald Heber, Jr. 1875 -1932 (B. Whidden, 1896)

Exploraciones zoológicas efectuadas en el Valle del Rio Naranjo en el año de 1893 : aves - Cherrie, George Kruck, 1865 -1946 (Tip. Nacional, 1895)

Exploraciones zoológicas efectuadas en la parte meridional de Costa Rica por los años de 1891-92. I, Aves - Cherrie, George Kruck, 1865 -1946 (Tip. nacional, 1893)

Explorations in the far North - University of Iowa. (The University, 1898)

Explorations in the far North being a report of an expedition under the auspices of the University of Iowa during the years 1892, '93, and '94 - Russell, Frank, 1868 -1903 (State University of Iowa, 1898)

Exposure of marine birds to environmental pollutants - Ohlendorf, Harry M. (U.S. Dept. of the Interior, Fish and Wildlife Service, 1978)

Facts relating to the history of Groton, Massachusetts - Green, Samuel A. (Samuel Abbott), 1830 -1918 (J. Wilson and Son], 1912)

Fauna arctica : eine Zusammenstellung der arktischen Tierformen mit besonderer Berücksichtigung des Spitzbergen-Gebietes auf Grund der Ergebnisse der Deutschen Expedition in das Nördliche Eismeer im Jahre 1898 - Brauer, August, 1863 -1917 (G. Fischer, 1905)

Fauna of Manitoba - Seton, Ernest Thompson, 1860 -1946 (s.n, 1909)

Fauna of New England (Printed for the [Boston] Society [of Natural History] from the Gurdon Saltonstall Fund, 1904)