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

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1911)

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, 1921)

Conspectus generum avium - Bonaparte, Charles-Lucien, 1803 -1857 (Apud E.J. Brill, 1850)

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

Contribucion á la ornitologia cubana - Gundlach, Johannes Christoph, 1810 -1896 (Imp. "La Antilla" de N. Cacho-Negrete, 1876)

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

Contributions to American helminthology, no. 1 - Wright, R. Ramsay (Robert Ramsay), 1852 -1933 (Copp, Clark, 1879)

Contributions to North American ethnology. Vol. I-VII, IX - Geographical; Geological Survey of the Rocky Mountain Region (U.S.) (Govt. Print. Off, 1890)

Contributions to ornithology for 1848-1853 - Strickland, Catherine Dorcas Maule Jardine (W.H. Lizars, 1849)

Contributions to the natural history of Alaska results of investigations made chiefly in the Yukon district and the Aleutian Islands; conducted under the auspices of the Signal Service, United States Army, extending from May, 1874, to August, 1881 - Turner, Lucien M. (Lucien McShan) (G.P.O, 1886)

Contributions to the natural history of the Bermudas. Vol. I - Goode, G. Brown (George Brown), 1851 -1896 (Govt. print. off, 1884)

Copeia - American Society of Ichthyologists; Herpetologists (American Society of Ichthyologists and Herpetologists, 1915)

Copeia - American Society of Ichthyologists; Herpetologists (American Society of Ichthyologists and Herpetologists, 1917)

The Coues check list of North American birds - Coues, Elliott, 1842 -1899 (Estes and Lauriat, 1882)

Cruise of the revenue steamer Corwin in Alaska and the N. W. Arctic ocean in 1881 ... Notes and memoranda ... - Bean, Tarleton H. (Tarleton Hoffman), 1846 -1916 (Govt. Print. Off, 1883)

Dansk ornithologisk forenings tidsskrift - Dansk ornitologisk forening. (Den Forening, 1907)

Dansk ornithologisk forenings tidsskrift - Dansk ornitologisk forening. (Den Forening, 1919)

Days out of doors - Abbott, Charles Conrad, 1843 -1919 (D. Appleton and Company, 1889)

Days out of doors - Abbott, Charles Conrad, 1843 -1919 (D. Appleton and company, 1889)

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)

A descriptive catalogue of the birds of Massachusetts - Samuels, Edward A. (Edward Augustus), 1836 -1908 (Wright & Potter, 1864)

Diaries of William Brewster, 1865-1919 (inclusive) - Brewster, William, 1851 -1919 (1872)

Diaries of William Brewster, 1865-1919 (inclusive) - Brewster, William, 1851 -1919 (1873)

Diaries of William Brewster, 1865-1919 (inclusive) - Brewster, William, 1851 -1919 (1878)

Diaries of William Brewster, 1865-1919 (inclusive) - Brewster, William, 1851 -1919 (1900)

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 (1911)

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

A Directory of Neotropical Wetlands (1986)

A directory of the ornithologists of the United States : comprising a list of the collectors and students of ornithology, with the valuations of their collections, number of species represented, &c., &c., supplemented by statistics of value and information concerning public and private collections, average value of public and private collections, topics of interest to amateurs, &c.,&c - Willard, S. L. (The Oologist, 1877)

Directory of Wetlands of International Importance (1990)

A distributional list of the birds of Arizona - Swarth, Harry S. (Harry Schelwald), 1878 -1935 (Cooper Ornithological Club, 1914)

A distributional list of the birds of Arizona - Cooper Ornithological Society. (Cooper Ornithological Club, 1914)

The Dominion of Canada (s.n, 1900)

Dr. H.G. Bronn's Klassen und Ordnungen des Thier-Reichs, wissenschaftlich dargestellt in Wort und Bild - Bronn, H. G. (Heinrich Georg), 1800 -1862 (C. F. Winter, 1879)

Draft programmatic environmental assessment for candidate conservation agreement with assurances and associated permit for fluvial Arctic grayling in the upper Big Hole River, Montana - U.S. Fish; Wildlife Service (Montana Fish, Wildlife and Parks, 2005)

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

Ecological land classification of Beauvais Lake Provincial Park study area - Alberta. Alberta Environment. (Alberta Environment, 2001)

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

Ecological land classification of Police Outpost Provincial Park and Outpost Wetlands natural area - Alberta. Alberta Environment. (Alberta Environment, 2001)

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)

The ecology and economics of Oneida Lake fish - Adams, Charles C. (Charles Christopher), 1873 -1955 (Roosevelt Wild Life Forest Experiment Station, 1928)

Economic relations of Wisconsin birds - King, F. H. (Franklin Hiram), 1848 -1911 (1883)

The economic value of birds to the state - Fuertes, Louis Agassiz, 1874 -1927 (J. B. Lyon Company, Printers, 1903)

Ecosystem management : rare species and significant habitats : proceedings of the 15th Annual Natural Areas Conference - Mitchell, Richard S., 1938 - (New York State Museum, University of the State of New York, State Education Dept, 1990)

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)

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)

Elementary zoology - Kellogg, Vernon L. (Vernon Lyman), 1867 -1937 (H. Holt and company, 1902)

Elementos de zoología - Dugès, Alfredo (Oficina tip. de la Secretaría de Fomento, 1884)

Elements of zoology - Holder, Joseph B. (Joseph Bassett), 1824 -1888 (D. Appleton and Company, 1886)

Elements of zoology - Holder, Joseph B. (Joseph Bassett), 1824 -1888 (American book company, 1885)

Elements of zoölogy : a textbook - Tenney, Sanborn, 1827 -1877 (Scribner, 1875)

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

The Emu : official organ of the Australasian Ornithologists' Union - Australasian Ornithologists' Union. (Royal Australasian Ornithologists Union, 1916)

Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia - American Entomological Society. ([Entomological Rooms of the Academy of Natural Sciences], 1910)

An essay toward a natural history of La Salle County, Illinois, in two parts - Huett, John William. (Fair-dealer print, 1898)

"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)

The evolution of bird-song : with observations on the influence of heredity and limitation - Witchell, Charles A. (Charles Aldolphus), 1862 -1907 (A. and C. Black, 1896)

Evolution of the colors of North American land birds - Keeler, Charles, 1871 -1937 (Academy of Sciences, 1893)

Evolution of the colors of North American land birds - Keeler, Charles, 1871 -1937 (California Academy of Sciences, 1893)

Evolution of the colors of North American Land Birds - Keeler, Charles, 1871 -1937 (California academy of sciences, 1893)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1910)

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)

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)

Fauna of New England, 11 : list of the aves - Allen, Glover M. (Glover Morrill), 1879 -1942 (Society of Natural History, 1909)

Fauna of New England - Allen, Glover M. (Glover Morrill), 1879 -1942 (Society of Natural History, 1909)

Fauna of New England. List of the Araneida. 9 - Bryant, Elizabeth B. (Elizabeth Bangs), 1875 -1953 (For Society, 1909)

A faunal investigation of Long Point and vicinity, Norfolk County, Ontario - Snyder, L. L. (Lester Lynne), 1894 - (Royal Ontario Museum of Zoology], 1931)

Faune des vertébrés de la Suisse - Fatio, Victor, 1838 -1906 (H. Georg, 1899)

La feuille des jeunes naturalistes : revue mensuelle d'histoire naturelle (A. Dollfus, 1890)

Field and forest - Potomac-side Naturalists' Club. (Columbia Press, 1876)

Field book - Belize and Mexico (Quintana Roo, Yucatan, and Campeche), 1985-1990 (2 of 2) - Smithsonian Environmental Research Center. (1988)

Field book - Fort Pierce, Florida, April 1993 - Smithsonian Environmental Research Center. (1993)

Field book of wild birds and their music : a description of the character and music of birds, intended to assist in the identification of species common in the United States east of the Rocky Mountains - Mathews, F. Schuyler (Ferdinand Schuyler), 1854 -1938 (G.P. Putnam's Sons, 1921)

Field book of wild birds and their music; a description of the character and music of birds, intended to assist in the identification of species common in the United States east of the Rocky Mountains - Mathews, F. Schuyler (Ferdinand Schuyler), 1854 -1938 (G.P. Putnam's Sons, 1921)

Field-days in California - Torrey, Bradford, 1843 -1912 (Houghton Mifflin Co, 1913)

Field journal, specimen lists, and miscellaneous notes, Fort Verde, Arizona, and Fort Snelling, Minnesota, 1888-1891 - Mearns, Edgar Alexander, 1856 -1916 (1888)

Field Notes, 1932-1939 (includes egg collecting at Big Stone Gap, Parramore Island, and Wachapreague, 1932-1936; nesting of Bald Eagles in Princess Anne County, 1937-1939; bird observations, 1932-1938) - Camblos, Joshua F. B. (1932)

Field notes, Kansas, Oklahoma, Texas, Virginia, and West Virginia, July 18-September 5, 1892 - Bailey, Vernon, 1864 -1942 (1892)

Field notes, Montana and Idaho, June 23-September 8, 1911 - Bailey, Vernon, 1864 -1942 (1911)

Field notes, Montana and Michigan, September 2-October 19, 1894, and field notes, Montana, Idaho, Washington, Oregon, and Michigan, March 3- September 20, 1895 - Bailey, Vernon, 1864 -1942 (1894)

Field notes, Montana, Washington, and Oregon, August 20-October 22, 1909 - Bailey, Vernon, 1864 -1942 (1909)

Field notes, Nevada and California, April 16-October 16, 1898 - Bailey, Vernon, 1864 -1942 (1898)

Field notes, New Mexico and Arizona, July 11-October 7, 1908 - Bailey, Vernon, 1864 -1942 (1908)

Field notes, New Mexico, Arizona, and California, May 27-July 21, 1907 - Bailey, Vernon, 1864 -1942 (1907)

Field notes, New York, New Jersey, and New Hampshire, August 26-September 17, 1910 - Bailey, Vernon, 1864 -1942 (1910)

Field notes, North Carolina, South Carolina, Georgia, Mississippi, Louisiana, and Texas, April 4-June 19, 1892 - Bailey, Vernon, 1864 -1942 (1892)

Field notes, Oklahoma and New Mexico, August 1-November 16, 1906 - Bailey, Vernon, 1864 -1942 (1906)