The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1990)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1992)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1995)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1999)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2001)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2002)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2007)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2013)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2014)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2019)

Capital natural de México - Sarukhan, Jose (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2009)

Cassinia - Delaware Valley Ornithological Club (Delaware Valley Ornithological Club, 1901)

Cassinia - Delaware Valley Ornithological Club (Delaware Valley Ornithological Club, 1905)

Cassinia - Delaware Valley Ornithological Club (Delaware Valley Ornithological Club, 1908)

Cassinia - Delaware Valley Ornithological Club (Delaware Valley Ornithological Club, 1912)

Catalogo das aves do Brasil e lista dos exemplares que as representam no Museu Paulista - Pinto, Oliveiro M. de Oliveira ([Museu Paulista], 1938)

Catálogo sistemático de toda la fauna de Filipinas conocida hasta el presente - Elera, Casto de, 1852 - (Imprenta del colegio de Santo Tomás, 1895)

Catalogue des oiseaux de la province de Québec avec des notes sur leur distribution geographique - Dionne, C.-E. (Charles-Eusèbe), 1846 -1925 (Des presses de J. Dussault, 1889)

Catalogue des oiseaux de la province de Québec avec des notes sur leur distribution géographique - Dionne, C.-E. (Charles-Eusèbe), 1846 -1925 (s.n.], 1889)

Catalogue of birds of the Americas and the adjacent islands in Field Museum of Natural History and including all species and subspecies known to occur in North America, Mexico, Central America, South America, the West Indies, and islands of the Caribbean Sea, the Galapagos Archipelago, and other islands which may properly be included on account of their faunal affinities - Field Museum of Natural History. (1948)

Catalogue of British Birds in the Collection of the British Museum - British Museum (Natural History) (1863)

Catalogue of Canadian birds - Geological Survey of Canada (Printed by S. E. Dawson, 1900)

Catalogue of Canadian birds - Geological Survey of Canada (Government printing bureau, 1909)

Catalogue of Canadian birds - Macoun, John, 1831 -1920 (Canada Dept. of Mines, Geological Survey Branch, 1909)

A catalogue of Canadian birds, By Montague Chamberlain - Chamberlain, Montague, 1844 -1924 (J. & A. McMillan, 1887)

Catalogue of Canadian birds part I, water birds, gallinaceous birds, and pigeons, including the following orders : pygopodes, longipennes, tubinares, steganopodes, anseres, herodiones, paludicolæ, limicolæ, gallinæ, and columbæ - Geological Survey of Canada (S.E. Dawson, 1900)

A catalogue of Canadian birds : with notes on the distribution of the species - Chamberlain, Montague, 1844 -1924 (J. & A. McMillan, 1887)

A catalogue of Canadian birds with notes on the distribution of the species - Chamberlain, Montague, 1844 -1924 (J. McMillan, 1887)

Catalogue of a collection of birds from British East Africa - Dearborn, Ned (1909)

Catalogue of North American birds, skins and mounted specimens - Ward's Natural Science Establishment, inc. (Ward's Natural Science Establishment)

Catalogue of the Birds in the British Museum - British Museum (Natural History). Department of Zoology. [Birds]. (1898)

A catalogue of the birds of Indiana - Butler, Amos W. (Amos William), 1860 -1937 (s.n, 1891)

A catalogue of the birds of the Virginias - Rives, William Cabell, 1850 -1938 (Printed for the Society by T.T. Pitman, 1890)

Catalogue of the Collection of Birds' Eggs in the British Museum - Oates, Eugene William, 1845 -1911 (1902)

Catalogue of the Edward E. Ayer Ornithological Library - Osgood, Wilfred Hudson, 1875 -1947 (1926)

Catalogue of the European and Asiatic migrants to Kenya and Uganda, with brief outline of the subject of migration of birds - Van Someren, Victor Gurner Logan, 1886 -1976 ([East Africa and Uganda Natural History Society], 1931)

A catalogue of the flowering plants and higher cryptogams, both native and introduced, found within about thirty miles of Hanover, N. H., including a few cultivated species, to which is appended a list of vertebrate animals of the same region - Jesup, Henry G. (Henry Griswold), 1826 -1903 (Printed for the Author, 1891)

The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project - Illinois. Dept. of Energy; Natural Resources. (Ill. Dept. of Energy and Natural Resources, 1994)

The Chat - North Carolina Bird Club. (Carolina Bird Club, 1954)

The Chat - North Carolina Bird Club. (Carolina Bird Club, 1962)

The Chat - North Carolina Bird Club. (Carolina Bird Club, 1967)

The Chat - North Carolina Bird Club. (Carolina Bird Club, 1977)

The Chat - North Carolina Bird Club. (Carolina Bird Club, 1981)

The Chat - North Carolina Bird Club. (Carolina Bird Club, 1984)

The Chat - North Carolina Bird Club. (Carolina Bird Club, 1988)

The Chat - North Carolina Bird Club. (Carolina Bird Club, 1996)

The Chat - North Carolina Bird Club. (Carolina Bird Club, 1997)

The Chat - North Carolina Bird Club. (Carolina Bird Club, 2004)

Check-list and bibliography on the occurrence of insects in birds' nests - Hicks, Ellis A. (Iowa State College Press, 1959)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1979)

Check-list of North American birds - American Ornithologists' Union. (1957)

Check-list of North American birds - American Ornithologists' Union. (American Ornithologists' Union, 1895)

Check-list of North American birds - American Ornithologists' Union. (American ornithologists' union, 1910)

Check-list of North American birds : according to the canons of nomenclature of the American Ornithologists' Union - American Ornithologists' Union. (The Union, 1889)

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)

A check list of Rhode Island nesting birds, with data - Remington, Charles H. (1908)

Check list of the birds of Ontario and catalogue of birds in the biological section of the Museum - Nash, Charles W. (Charles William), 1848 -1926 (Dept. of Education, 1900)

Check list of the birds of Ontario and catalogue of birds in the biological section of the museum, Department of Education, Toronto - Nash, Charles W. (Charles William), 1848 -1926 (s.n.], 1900)

Check list of the birds of Ontario and catalogue of birds in the biological section of the museum, Department of Education, Toronto - Nash, C. W. (Warwick Bros. & Rutter, 1900)

Check-list of the species of fishes known from the Philippine Archipelago - Jordan, David Starr, 1851 -1931 (Bureau of printing, 1910)

Checklist of the birds of Belize - Carnegie Museum of Natural History (Carnegie Museum of Natural History, 1986)

Checklist of the birds of Massachusetts - Massachusetts. Division of Fisheries; Wildlife. (Massachusetts Division of Fisheries & Wildlife, 1998)

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

Checklists for the CORINE Biotopes Programme and its application in the PHARE countries of Central and East Europe: including comparisons with relevant conventions and agreements on the conservation of European species and habitats - WCMC (EC, 1994)

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

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

Coastal Sensitivity Overview of the Strait of Malacca. Compiled for International Maritime Organisation (IMO) - WCMC (IMO, 1994)

Coastal waterbird colonies, Maine to Virginia, 1977 : an atlas showing colony locations and species composition - Biological Services Program (U.S.) (The Service, 1979)

The code of nomenclature and check-list of North American birds : adopted by the American Ornithologists' Union : being the report of the Committee of the Union on Classification and Nomenclature - American Ornithologists' Union. Committee on Classification; Nomenclature. (1886)

Collected papers in avian paleontology honoring the 90th birthday of Alexander Wetmore - Wetmore, Alexander, 1886 -1978 (Smithsonian Institution Press, 1976)

The collectors' monthly (1893)

Colonial nesting bird survey on the Bureau of Land Management Lewistown district : 1996 - United States. Bureau of Land Management. (Montana Natural Heritage Program, 1997)

Color key to North American birds - Reed, Chester A. (Chester Albert), 1876 -1912 (Doubleday, Page & company, 1903)

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, 1912)

Coloured figures of the eggs of British birds : with descriptive notices - Sharpe, Richard Bowdler, 1847 -1909 (Pawson and Brailsford, 1896)

Comparative breeding behavior of four species of North American herons - Meyerriecks, Andrew J (Nuttall Ornithological Club, 1960)

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

Comptes rendus hebdomadaires des séances et mémoires de la Société de biologie - Société de biologie (Paris, France) (G. Masson, 1911)

Comptes rendus hebdomadaires des séances et mémoires de la Société de biologie - Société de biologie (Paris, France) (G. Masson, 1915)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1899)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1901)

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

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

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

Contribution to the ornithology of western South Africa : results of the British Museum (Natural History) South West Africa Expedition, 1949-50 - British Museum (Natural History). Department of Botany. (1957)

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, 1889)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1979)

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

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

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)

Coral Reefs of the World (1988)

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)

Department bulletin - United States. Department of Agriculture. (Supt. of Docs., G.P.O, 1913)

Deutsches Vogelbuch für Forst- und Landwirte : Jäger, Naturfreunde und Vogelliebhaber - Floericke, Kurt, 1869 -1934 (Kosmos, Gesellschaft der Naturfreunde, 1907)

di xing dui dong zhi wu de ying xiang - Milʹkov, F. N. (Fedor Nikolaevich) (ke xue chu ban she, 1956)

Dioxin hazards to fish, wildlife, and invertebrates a synoptic review - U.S. Fish; Wildlife Service (Fish and Wildlife Service, U.S. Dept. of Interior, 1986)

A directory of American museums of art, history, and science - Rea, Paul Marshall, 1878 - (Buffalo Society of Natural Sciences, 1910)

A Directory of Neotropical Wetlands (1986)