New England bird life: being a manual of New England ornithology - Coues, Elliott, 1842 -1899 (Lee and Shepard, 1883)

New England birds : systematic notes - Brewster, William, 1851 -1919 (1865)

The New Forest: its history and its scenery - Wise, John R. (John Richard), 1831 -1890 (Smith, Elder and co, 1863)

The New Forest : its history and its scenery - Crane, Walter, 1845 -1915 (Smith, Elder, 1867)

The New Forest : its history and its scenery - Wise, John R. (John Richard), 1831 -1890 (Gibbings, 1895)

The New Forest; its history and its scenery - Wise, John R. (John Richard), 1831 -1890 (Gibbings & co, 1895)

A new wading bird from the Eocene of Patagonia - Simpson, George Gaylord, 1902 -1984 (American Museum of Natural History, 1955)

Newfoundland birds : exploitation, study, conservation - Montevecchi, William A (Nuttall Ornithological Club, 1987)

Nihon chōrui mokuroku / Nihon Chōgakkai hensan - Kuroda, Nagamichi, 1889 -1978 (Ornithological Society of Japan], 1922)

Nomenclature of North American birds chiefly contained in the United States National Museum - Ridgway, Robert, 1850 -1929 (Govt. Print. Off, 1881)

Nonmenclator der vögel Bayerns - Hellmayr, Carl Eduard, 1878 -1944 (Im buchhandel zu beziehen durch G. Fischer in Jena, 1916)

Nordens Fåglar - Jägerskiöld, Leonard A., 1867 -1945 (F. & G. Beijers, 1898)

Norsk ornithologisk tidsskrift (1920)

Norsk ornitologisk ekskursjonsfauna : kort beskrivelse af de i Norge iagttagne arter fugle - Stejneger, Leonhard, 1851 -1943 (Forlagt af Alb. Cammermeyer, 1873)

North American birds eggs - Reed, Chester A. (Chester Albert), 1876 -1912 (Doubleday, Page & company, 1904)

North American birds eggs - Reed, Chester A. (Chester Albert), 1876 -1912 (Dover Pub, 1965)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1947)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1959)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1958)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1975)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1981)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1991)

North Atlantic biota and their history; a symposium held at the University of Iceland, Reykjavík, July 1962, under the auspices of the University of Iceland and the Museum of Natural History. Editors: Askell Löve and Doris Löve. Sponsored by the NATO Advanced Study Institutes Program - Áskell Löve, 1916 -1994 (Pergamon Press, 1963)

Nos oiseaux - Société romande pour l'étude et la protection des oiseaux. (Soci romande pour l'de et la protection des oiseaux, 1913)

Notes from the Leyden Museum - Rijksmuseum van Natuurlijke Historie te Leiden. (E.J. Brill, 1893)

Notes from the Leyden Museum - Rijksmuseum van Natuurlijke Historie te Leiden. (E.J. Brill, 1908)

Notes from the Leyden Museum - Rijksmuseum van Natuurlijke Historie te Leiden. (E.J. Brill, 1909)

Notes on the birds of Herefordshire - Bull, Henry Graves, 1818 -1885 (port, 1888)

Notes on the birds of Kent - Balston, R. J. (R.H. Porter, 1907)

Notes on the birds of Northamptonshire and neighbourhood - Thorburn, Archibald, 1860 -1935 (Porter, 1895)

Notiser ur Sällskapets pro Fauna et Flora Fennica förhandlingar - Societas pro Fauna et Flora Fennica (Sällskapet pro Fauna et Flora Fennica, 1848)

Notiser ur Sällskapets pro Fauna et Flora Fennica förhandlingar - Societas pro Fauna et Flora Fennica (Sällskapet pro Fauna et Flora Fennica, 1875)

Notizen aus dem Gebiete der Natur- und Heilkunde (G.H.S. pr. Landes-Industrie-Comptoir, 1825)

Nouveau recueil de planches coloriées d'oiseaux : pour servir de suite et de complément aux planches enluminées de Buffon, édition in-folio et in-4⁰ de l'Imprimerie royale, 1770 - Buffon, Georges Louis Leclerc, comte de, 1707 -1788 (Chez Legras Imbert et Comp, 1838)

Nouvelles annales du Muséum d'histoire naturelle - Muséum national d'histoire naturelle (France) (Roret, 1833)

Nouvelles archives du Muséum d'histoire naturelle - Muséum national d'histoire naturelle (France) (Masson et Cie, 1872)

Nouvelles suites à Buffon (Roret, 1844)

Nova acta Academiae Caesareae Leopoldino-Carolinae Germanicae Naturae Curiosorum - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmanni et Filii, 1882)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1928)

Nuovi annali delle scienze naturali (1842)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1864)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1880)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1893)

Observations in natural history : with an introduction on habits of observing, as connected with the study of that science ; also a calendar of periodic phenomena in natural history ; with remarks on the importance of such registers - Jenyns, Leonard, 1800 -1893 (John van Voorst, 1846)

Occasional papers - Boston Society of Natural History. (1904)

Occasional papers of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1904)

Öfversigt af Finska vetenskaps-societetens förhandlingar - Suomen Tiedeseura (s.n.], 1857)

Öfversigt af Finska vetenskaps-societetens förhandlingar - Suomen Tiedeseura (s.n.], 1869)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1861)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1863)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1868)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1876)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1889)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1896)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1934)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1936)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1937)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1938)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1947)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1948)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1957)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1958)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1963)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1969)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1971)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1973)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1980)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1982)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1983)

Les oiseaux d'Europe, tableaux synoptiques - Paris, Paul, 1875 -1938. (L. Laveur, 1906)

Les oiseaux de l'est du Canada - Taverner, P. A. (Percy Algernon), 1875 -1947 (F.A. Acland, 1922)

Les oiseaux du Canada - Dionne, C.-E. (Charles-Eusèbe), 1846 -1925 (P. G. Delisle, 1883)

Les oiseaux du Canada - Dionne, C.-E. (Charles-Eusèbe), 1846 -1925 (s.n.], 1883)

Les oiseaux - Perrier, Edmond, 1844 -1921 (J.B. Bailli, 1904)

Oiseaux - Fédération des sociétés françaises de sciences naturelles. Office central de faunistique. (P. Lechevalier, 1921)

Oiseaux voyageurs et poissons de passage. Étude comparée d'organisme, de moeurs et d'instinct - Berthelot, Sabin, 1794 -1880 (Challamel aîné, 1875)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1917)

The oologists' hand-book : 1885 catalogue of American birds' eggs, and oological supplies, with prices at which they may be obtained of - Lattin, Frank H (John P. Smith, Printer, 1885)

Ootheca Wolleyana: an illustrated catalogue of the collection of birds' eggs - Newton, Alfred, 1829 -1907 (sold by R. H. Porter, 1907)

Opera ornithologica - Bonaparte, Charles-Lucien, 1803 -1857 (1857)

Ornamental and domestic poultry : their history and management - Dixon, Edmund Saul, 1809 -1893 (Gardeners' Chronicle, 1850)

Ornamental and domestic poultry: their history and management - Dixon, Edmund Saul, 1809 -1893 (The Gardeners' Chronicle, 1848)

Ornamental waterfowl: a practical manual on the acclimatization of the swimming birds - Hubbard, Rose E. (W. H. Robinson, 1907)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1885)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1886)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1887)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1890)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1891)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1895)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1896)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1898)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1899)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1904)

Ornis Carinthiae. Die Vögel Kärntens. Verzeichniss der bis jetzt in Kärnten beobachteten Vögel, nebst bemerkungen über deren zug, Lebensweise, locale Eigenthümlichkeiten etc. etc - Keller, Franz Carl, 1847 -1907 (Druck von Ferd. v. Kleinmayr, 1890)

Ornis Caucasica. Die Vogelwelt des Kaukasus : systematisch und biologisch-geographisch beschrieben - Radde, Gustav, 1831 -1903 (Verlag von Theodor Fischer, 1884)

Ornithologia neerlandica. De vogels van Nederland - Oort, E. D. van (Eduard Daniël),‏ ‎ 1876 -1933 (M. Nijhoff, 1922)

Ornithological bibliography - Coues, Elliott, 1842 -1899 (Geological Survey [etc.], 1878)

Ornithological biography, or an account of the habits of the birds of the United States of America ; accompanied by descriptions of the objects represented in the work entitled The Birds of America, and interspersed with delineations of American scenery and manners - Audubon, John James, 1785 -1851 (Adam Black, 1835)

Ornithological biography, or an account of the habits of the birds of the United States of America ; accompanied by descriptions of the objects represented in the work entitled The Birds of America, and interspersed with delineations of American scenery and manners - Audubon, John James, 1785 -1851 (Adam Black, 1838)

The ornithological guide - Wood, Charles Thorold. (Whittaker, 1835)

[Ornithological papers] - Seebohm, Henry, 1832 -1895 (1876)

Ornithological rambles in Sussex : with a systematic catalogue of the birds of that county, and remarks on their local distribution - Knox, Arthur Edward (J. Van Voorst, 1849)

Ornithological report - Yorkshire Naturalists' Union (Yorkshire Naturalists' Union, 1979)

Ornithological report - Yorkshire Naturalists' Union (Yorkshire Naturalists' Union, 1981)

Ornithological report - Yorkshire Naturalists' Union (Yorkshire Naturalists' Union, 1984)

Ornithological report - Yorkshire Naturalists' Union (Yorkshire Naturalists' Union, 1985)

Ornithological report - Yorkshire Naturalists' Union (Yorkshire Naturalists' Union, 1986)

Ornithological report - Yorkshire Naturalists' Union (Yorkshire Naturalists' Union, 1988)

Ornithological science - Nihon Chogakkai (Ornithological Society of Japan, 2002)

Ornithologie européenne, ou, Catalogue descriptif, analytique et raisonné des oiseaux observés en Europe - Gerbe, Zéphirin, 1810 -1890 (J.B. Bailli, 1867)

Ornithologie Nordost-Afrika's : der Nilquellen- und Küsten Gebiete des Rothen Meeres und des nördlichen Somal-Landes - Heuglin, Theodor von, 1824 -1876 (T. Fischer, 1869)

Ornithologie Nordost-Afrika's : der Nilquellen- und Küsten Gebiete des Rothen Meeres und des nördlichen Somal-Landes - Heuglin, Theodor von, 1824 -1876 (T. Fischer, 1874)

Ornithologie Nordost-Afrika's : der Nilquellen- und Küsten Gebiete des Rothen Meeres und des nördlichen Somal-Landes - Heuglin, Theodor von, 1824 -1876 (T. Fischer, 1873)