Check-list of North American birds - American Ornithologists' Union. (The Union, 1931)

Check-list of North American birds : the species of birds of North America from the Arctic through Panama, including the West Indies and Hawaiian Islands / prepared by the Committee on Classification and Nomenclature of the American Ornithologists' Union - American Ornithologists' Union. (American Ornithologists' Union, 1983)

Check-list of the vertebrate fauna of San Dimas Experimental Forest - California Forest; Range Experiment Station. (California Forest and Range Experiment Station, 1946)

Checklist of birds listed in the CITES appendices (1995)

Checklist of CITES Species (1998)

Checklist of CITES Species: a reference to the appendices to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (1996)

Checklist of CITES Species: a reference to the appendices to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (2001)

Checklist of the recent vertebrate fauna of the Lubbock Lake Landmark State Historical Park, 1955-1997 - Bradley, Robert D. (Texas Tech University Press, 1998)

A checklist of the vertebrate animals of Kansas - Collins, Joseph T. (Museum of Natural History, University of Kansas, 1991)

Chesapeake Bay, issues, resources, status, and management : proceedings of a seminar held September 23, 1985, Washington, D.C - United States. NOAA Estuarine Programs Office. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, NOAA Estuarine Programs Office, 1988)

The chewing lice : world checklist and biological overview - Price, Roger D. (Illinois Natural History Survey, 2003)

Circular - United States. Bureau of Entomology. (The Bureau, 1912)

Circular / U.S. Fish and Wildlife Service - U.S. Fish; Wildlife Service (U.S. G.P.O.,, 1950)

Circular / U.S. Fish and Wildlife Service - U.S. Fish; Wildlife Service (U.S. G.P.O.,, 1953)

Civic biology; a textbook of problems, local and national, that can be solved only by civic coöperation - Dawson, Jean, 1873 - (Ginn and Company, 1918)

Civic biology, a textbook of problems, local and national, that can be solved only by civic coöperation - Hodge, Clifton F. (Clifton Fremont), 1859 -1919 (Ginn, 1918)

Civic biology; a textbook of problems, local and national, that can besolved only by civic cooperation - Dawson, Jean, 1873 - (Ginn and company, 1918)

A classification of Ontario birds - Snyder, L. L. (Lester Lynne), 1894 - (Royal Ontario Museum of Zoology, 1950)

[Collected reprints, 1911-1931 - Swarth, Harry S. (Harry Schelwald), 1878 -1935 (s.n, 1900)

Collection Académique partie etrangère - Société Royale des Sciences de Turin (Société Royale des Sciences de Turin, 1757)

College zoology - Hegner, Robert William, 1880 -1942 (Macmillan, 1959)

Color key to North American birds : with bibliographical appendix - Reed, Chester A. (Chester Albert), 1876 -1912 (D. Appleton & Co, 1912)

Color key to North American birds, with bibliographical appendix - Reed, Chester A. (Chester Albert), 1876 -1912 (D. Appleton & Company, 1912)

Color key to North American birds; with bibliographical appendix - Reed, Chester A. (Chester Albert), 1876 -1912 (D. Appleton, 1912)

A comparative study of reproductive potential in parkland- and arctic-nesting mallards and pintails (Anatidae) - Calverley, Brett K. (University of Alberta, Dept. of Zoology, 1975)

Compendium of natural features information - Maryland. State Planning Dept. (The Department, 1975)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1907)

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, 1920)

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

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

Conservation Biology in Sub-Saharan Africa - Primack, Richard B. (Open Book Publishers, 2019)

Conservation of marine birds of northern North America : papers from the international symposium held at the Seattle Hyatt House, Seattle, Washington, 13-15 May 1975 - U.S. Fish; Wildlife Service (U.S. Dept. of the Interior, Fish and Wildlife Service, 1979)

Contributions à la faune ornithologique de l'Europe occidentale : recueil comprenant les espèces d'oiseaux que se reproduisent dans cette région ou qui s'y montrent régulièrement de passage, augmenté de la description des principales espèces exotiques les plus voisines des indigènes ou susceptibles d'ètre confondues avec elles, ainsi que l'énumération des races domestiques - Olphe-Galliard, Léon, 1825 -1893 (L. Lasserre, 1884)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1962)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1966)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1980)

Contributions to avian palaeontology from the Pacific coast of North America - Miller, Loye, 1874 -1970 (University of California press, 1912)

Contributions to the history of North American ornithology - Jackson, Jerome A (Nuttall Ornithological Club, 2000)

Contributions to the history of North American ornithology - Jackson, Jerome A (Nuttall Ornithological Club, 2010)

Cooperative Wildlife Program : phase I literature search and review project report - United States. Bureau of Land Management. ([Chevron U.S.A., Inc.?], 1984)

The crane-flies of New York - Alexander, Charles P. (Charles Paul), 1889 -1981 (1920)

The crane-flies of New York. Part II. Biology and phylogeny - Alexander, Charles P. (Charles Paul), 1889 -1981 (1920)

Current bibliography for aquatic sciences and fisheries - Food; Agriculture Organization of the United Nations. Fisheries Division. Biology Branch. (Taylor & Francis ltd, 1960)

A directory of Illinois systematists, ecologists, and field biologists - Robertson, Kenneth Ray, 1941 - ([Section of Botany and Plant Pathology, Illinois Natural History Survey], 1989)

A Directory of Neotropical Wetlands (1986)

Directory of Wetlands of International Importance (1990)

Directory of Wetlands of International Importance (1987)