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

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

A check list of North-American birds - Coues, Elliott, 1842 -1899 (F.W. Putnam, 1879)

A check list of North American birds - Coues, Elliott, 1842 -1899 (Naturalists' Agency, 1874)

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 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)

A check list of the genera and species of Mallophaga - Clay, Theresa (BM(NH), 1952)

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

Check list of the vertebrates of Ontario and catalogue of specimens in the biological section of the Provincial museum. Birds - Nash, Charles W. (Charles William), 1848 -1926 (L. K. Cameron, printer to the king's most excellent Majesty, 1905)

Check list of the vertebrates of Ontario and catalogue of specimens in the Biological Section of the Provincial Museum birds - Nash, Charles W. (Charles William), 1848 -1926 (L.K. Cameron, 1905)

Checklist of British Columbia birds - Fannin, John, 1839 -1904 (Printed by R. Wolfenden, 1891)

A checklist of North American birds - Coues, Elliott, 1842 -1899 (Naturalists' Agency, 1873)

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)

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

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.,, 1955)

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

A classified catalogue of the birds of Canada : including every species known to visit the several provinces which now form the Dominion of Canada - Ross, Alexander Milton, 1832 -1897 (Rowsell & Hutchison, 1872)

A classified catalogue of the birds of Canada including every species known to visit the several provinces which now form the Dominion of Canada - Ross, Alexander Milton, 1832 -1897 (Rowsell & Hutchison, 1872)

A classified index and synopsis of The animal kingdom arranged in conformity with its organization - Gray, John Edward, 1800 -1875 (Printed for Whittaker and Co, 1835)

A classified list of the names and Latin synonyms of the British birds; including the names of all species observed up to the present time in the British Isles... - Sealy, Alfred Forbes. (Printed by J. Webb, 1853)

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 articles from The Ibis on the ornithology of Central America] - Salvin, Osbert, 1835 -1898 ([Blackwell Scientific], 1859)

[Collected reprints, 1902-1928 - Howell, Arthur H. (Arthur Holmes), 1872 -1940 (s.n, 1900)

The collected scientific papers of the late Alfred Henry Garrod, M.A., F.R.S - Forbes, W. A. (William Alexander), 1855 -1883 (R.H. Porter, 1881)

The collection of birds in the Shanghai Museum - La Touche, J. D. D. (John David Digues), 1861 -1935 (1909)

Collection of pamphlets on mollusks (1881)

The Collectors' monthly (C.H. Prince, 1892)

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 & Company, 1912)

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

Coloured figures of the birds of the British Islands / issued by Lord Lilford - Salvin, Osbert, 1835 -1898 (R. H. Porter, 1885)

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

Coloured illustrations of British birds, and their eggs - Meyer, H. L. (Henry Leonard), 1864 (G.W. Nickisson, 1848)

Coloured illustrations of British birds, and their eggs - Meyer, H. L. (Henry Leonard), 1864 (G.W. Nickisson, 1850)

Coloured illustrations of the eggs of British birds - Hewitson, William C. (William Chapman), 1806 -1878 (J. Van Voorst, 1856)

Commissioners' report - Ontario. Game; fish commission. (Printed by Warwick & sons, 1892)

The common birds of Bombay - Aitken, Edward Hamilton, 1851 -1909 (Thacker, 1900)

A companion to Mr. Bullock's Museum. Containing a brief description of upwards of seven thousand natural and foreign curiosities, antiquities, and productions of the fine arts, collected principally at Liverpool, during several years of arduous research, and at an expence of upwards of twenty-two thousand pounds, and now open for public inspection, in the Great Room, no. 22, Piccadilly, London ... - Liverpool Museum (Liverpool, England) (Printed for the proprietor, by H. Reynell, 1810)

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

A compendium of the ornithology of Great Britain, with a reference to the anatomy and physiology of birds - Atkinson, John, 1787 -1828 (Printed for Hurst, Robinson and co.; [etc., etc.], 1820)

Compléments de Buffon races humaines et mammifères - Lesson, R. P. (René Primevère), 1794 -1849 (P. Pourrat, 1840)

Comptes rendus hebdomadaires des séances de l'Académie des sciences - Centre national de la recherche scientifique (France) (publiés avec le concours du Centre national de la recherche scientifique par MM. les secrétaires perpétuels, 1856)

Concealing-coloration in the animal kingdom; an exposition of the laws of disguise through color and pattern: being a summary of Abbott H. Thayer's discoveries - Thayer, Abbott Handerson, 1849 -1921 (The Macmillan Co, 1909)

A concise handbook of British birds - Swann, H. Kirke (Harry Kirke), 1871 -1926 (J. Wheldon, 1896)

Condition and doings of the Boston Society of Natural History as exhibited by the annual reports - Boston Society of Natural History. (1864)

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, 1904)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1905)

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)

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)

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

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

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

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 quaternary vertebrate paleontology: a volume in memorial to John E. Guilday - Genoways, Hugh H. (Carnegie Museum of Natural History, 1984)

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

Contributions to the history of Australasian ornithology - Nuttall Ornithological Club. (Nuttall Ornithological Club, 2008)

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

A Cornish fauna : being a compendium of the natural history of the county : intended to form a companion to the collection in the Museum of the Royal Institution of Cornwall - Couch, Jonathan, 1789 -1870 (Printed for the Royal Institution of Cornwall, by L.E. Gillet, 1838)

A Cornish fauna; being a compendium of the natural history of the county, intented to form a companion to the collection in the Museum of the Royal Institution of Cornwall Part 1 Containing the vertebrate, crustacean, and a portion of the radiate animals - Couch, Jonathan, 1789 -1870 (printed for the Royal Institution of Cornwall ; by L.E. Gillet, 1838)

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

The cyclopædia; or, Universal dictionary of arts, sciences, and literature - Rees, Abraham, 1743 -1825 (Longman, Hurst, Rees, Orme & Brown [etc.], 1819)

Danmarks fauna; illustrerede haandbøger over den danske dyreverden... - Dansk naturhistorisk forening. (G.E.C. Gad, 1926)