The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 2000)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 2004)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 2005)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 2006)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 2009)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 2010)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 2014)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 2016)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 2017)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 2018)

Nesting raptors in southwestern Alaska : status, distribution, and aspects of biology - United States. Bureau of Land Management. Alaska State Office. (U.S. Department of the Interior, Bureau of Land Management, Alaska State Office, 1983)

Nests and eggs of North American birds - Davie, Oliver, 1857 -1911 (Hann & Adair, 1889)

Nests and eggs of North American birds - Davie, Oliver, 1857 -1911 (D. McKay, 1900)

Nests and eggs of North American birds - Davie, Oliver, 1857 -1911 (Landon Press, 1898)

The new Canadian bird book for school and home - MacClement, W. T. (William Thomas), 1861 - (Dominion Book Co, 1914)

A new genus and species of gooselike swan from the Pliocene of Nebraska - Short, Lester L. (American Museum of Natural History, 1969)

A new species of bush-warbler from Bougainville Island and a monophyletic origin for southwest Pacific Cettia - LeCroy, Mary (American Museum of Natural History, 2006)

New Zealand birds and how to identify them - Moncrieff, Perrine. (Whitcombe & Tombs, 1925)

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

The Nidiologist - Cooper Ornithological Club of the Pacific Coast. (Henry Reed Taylor, 1895)

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

Ninth Great Plains Wildlife Damage Control Workshop proceedings : April 17-20, 1989, Fort Collins, Colorado - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1989)

Norfolk natterjack - Norfolk; Norwich Naturalists' Society. (Norfolk and Norwich Naturalists Society, 2002)

Norsk ornithologisk tidsskrift (1920)

North American birds - National Audubon Society. (American Birding Association in alliance with the National Audubon Society, 2001)

North American birds - National Audubon Society. (American Birding Association in alliance with the National Audubon Society, 2003)

North American birds - National Audubon Society. (American Birding Association in alliance with the National Audubon Society, 2008)

North American birds - National Audubon Society. (American Birding Association in alliance with the National Audubon Society, 2012)

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, 1891)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1893)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1895)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1900)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1908)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1910)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1918)

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, 1978)

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)

A North American faunal index to the "Ornithologist" and "Oölogist". Part 1-4 - Howe, Reginald Heber, Jr. 1875 -1932 (1901)

North Park habitat management plan : CO-01 WHA-2 - United States. Bureau of Land Management. (U.S. Dept. of the Interior, Bureau of Land Management, 1977)

North Platte River area designated (noxious) weed treatment program : environmental assessment record - United States. Bureau of Land Management. (Wyoming Department of Agriculture, 1978)

Northern Eden : community-based wildlife management in Canada - Treseder, Leslie. (Canadian Circumpolar Institute Press, 1999)

Notebooks of William Brewster - Brewster, William, 1851 -1919 (1883)

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

Notes on Rhode Island ornithology - Howe, Reginald Heber, Jr. 1875 -1932 (R.H. Howe, Jr, 1900)

Notes on Rhode Island ornithology - Howe, Reginald Heber, Jr. 1875 -1932 (R.H. Howe, Jr, 1901)

Notes on Rhode Island ornithology - Howe, Reginald Heber, Jr. 1875 -1932 (R.H. Howe, Jr, 1902)

Notes on the Birds which I have seen, Volume I, by Rudolphe Meyer de Schauensee - Meyer de Schauensee, Rodolphe, 1901-1984 (1911)

Notes on the natural history of portions of Montana and Dakota; being the substance of a report to the Secretary of War on the collections made by the North Pacific Railroad Expedition of 1873, Gen. D.S. Stanley, commander - Allen, J. A. (Joel Asaph), 1838 -1921 (1874)

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)

Occasional papers of the Museum of Natural History, the University of Kansas - University of Kansas. Museum of Natural History. (The University, 1989)

Occasional papers of the Museum of Zoology, University of Michigan - University of Michigan. Museum of Zoology. (University of Michigan, 1918)

Occasional papers of the San Diego Society of Natural History - San Diego Society of Natural History. (San Diego Society of Natural History, 1959)

The Ohio journal of science - Ohio Academy of Science. (Ohio Academy of Science, 1909)

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1900)

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1911)

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, 1940)

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, 1956)

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, 1968)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1970)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1977)

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, 1983)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1989)

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

Les oiseaux de la province de Que´bec - Dionne, C.-E. (Charles-Eusèbe), 1846 -1925 (Dussault & Proulx, 1906)

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

Oldman River Dam ... raptor mitigation program - Alberta. Alberta Environment. (Govt. of the Province of Alberta, Dept. of Public Works, Supply and Services, 1993)

Oldman River Dam ... raptor mitigation program - Alberta. Alberta Environment. (Govt. of the Province of Alberta, Dept. of Public Works, Supply and Services, 1990)

Oldman River Dam ... raptor mitigation program - Alberta. Alberta Environment. (Govt. of the Province of Alberta, Dept. of Public Works, Supply and Services, 1992)

Oldman River Dam ... raptor mitigation program - Alberta. Alberta Environment. (Govt. of the Province of Alberta, Dept. of Public Works, Supply and Services, 1991)

On the birds' highway - Fuertes, Louis Agassiz, 1874 -1927 (Small, Maynard & Company, 1899)

On the plains, and among the peaks, or, How Mrs. Maxwell made her natural history collection - Ridgway, Robert, 1850 -1929 (Claxton, Remsen & Haffelfinger, 1879)

The Ontario natural science bulletin - Wellington Field Naturalists' Club. (Wellington Field Naturalists' Club, 1905)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank Haak), 1861 -1937 (Frank H. Lattin, 1887)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank Haak), 1861 -1937 (Frank H. Lattin, 1889)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank Haak), 1861 -1937 (Frank H. Lattin, 1890)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank Haak), 1861 -1937 (Frank H. Lattin, 1891)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank Haak), 1861 -1937 (Frank H. Lattin, 1893)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank Haak), 1861 -1937 (Frank H. Lattin, 1895)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank Haak), 1861 -1937 (Frank H. Lattin, 1898)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank Haak), 1861 -1937 (Frank H. Lattin, 1909)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank Haak), 1861 -1937 (Frank H. Lattin, 1911)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank Haak), 1861 -1937 (Frank H. Lattin, 1919)

The Oregon naturalist (Naturalist Pub. Co, 1896)

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

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 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)

Ornithologische Monatsberichte (Verlag von R. Friedländer & Sohn, 1902)

Ornithologische Monatsberichte (Verlag von R. Friedländer & Sohn, 1914)

Ornithologische Monatsberichte (Verlag von R. Friedländer & Sohn, 1920)

Ornithologische Monatsschrift - Deutscher Verein zum Schutze der Vogelwelt. (Kommissions-Verlag der Creutschen Verlagsbuchhandlung, 1910)

Ornithologisches Jahrbuch (V. Tschusi, 1903)

The Ornithologist and oölogist (1884)

The Ornithologist and oölogist (1887)

The Ornithologist and oölogist (1890)

The Ornithologist and oölogist (1892)

The ornithology of Illinois - Ridgway, Robert, 1850 -1929 (H.W. Rokker, printer, 1889)