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

Les oiseaux du Canada clef systématique pour l'identification des ordres, sous-ordres, tribus, familles, genres et espè ces - Provancher, L. (Léon), 1820 -1892 (s.n.], 1874)

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)

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

On the chief groups of the Cephalopoda - Wiltshire, Thomas. (1869)

On the geology and natural history of the upper Missouri :Being the substance of a report made to Lieut. G.K. Warren, T.E. U.S.A - Hayden, F. V. (Ferdinand Vandeveer), 1829 -1887 (Printed by C. Sherman & son, 1862)

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 H. Lattin, 1887)

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

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

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1906)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1907)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1912)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1914)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1922)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1923)

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)

Opuscula ornithologica : notis et addendis, mss - Coues, Elliott, 1842 -1899 (1861)

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

Ornithological & other oddities - Finn, Frank, 1868 -1932 (J. Lane, 1907)

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

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

Ornithological vocabulary of the Moki Indians - Mearns, Edgar Alexander, 1856 -1916 (Judd & Detweiler, printers, 1896)

Ornithologische Monatsberichte (Verlag von R. Friedländer & Sohn, 1898)

Ornithologische Monatsberichte (Verlag von R. Friedländer & Sohn, 1904)

Ornithologische Monatsberichte (Verlag von R. Friedländer & Sohn, 1922)

Ornithologische Monatsschrift - Deutscher Verein zum Schutze der Vogelwelt. (Kommissions-Verlag der Creutschen Verlagsbuchhandlung, 1890)

Ornithologische Monatsschrift - Deutscher Verein zum Schutze der Vogelwelt. (Kommissions-Verlag der Creutschen Verlagsbuchhandlung, 1911)

Ornithologisches Centralblatt (L.A. Kittler, 1878)

Ornithologisches Jahrbuch (V. Tschusi, 1890)

Ornithologisches Jahrbuch (V. Tschusi, 1909)

The Ornithologist and oölogist (1884)

The Ornithologist and oölogist (1885)

The Ornithologist and oölogist (1886)

The Ornithologist and oölogist (1887)

The Ornithologist and oölogist (1888)

The Ornithologist and oölogist (1889)

The Ornithologist and oölogist (1890)

The Ornithologist and oölogist (1892)

Ornithology and oo¨logy of New England: containing full descriptions of the birds of New England, and adjoining states and provinces - Samuels, Edward A. (Edward Augustus), 1836 -1908 (Nichols and Noyes, 1867)

Ornithology and oölogy of New England: containing full descriptions of the birds of New England, and adjoining states and provinces ... - Samuels, Edward A. (Edward Augustus), 1836 -1908 (Nichols and Noyes, 1867)

The ornithology of Chester County, Pennsylvania - Burns, Frank L. (Franklin Lorenzo), 1869 -1946 (R. G. Badger, 1919)

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

The ornithology of Illinois. Part I. Descriptive catalogue - Ridgway, Robert, 1850 -1929 (H. W. Rokker, Printer, 1889)

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

The ornithology of Illinois - Ridgway, Robert, 1850 -1929 (H.W. Rokker, printer, 1913)

The ornithology of Illinois - Ridgway, Robert, 1850 -1929 (H.W. Rokker, printer, 1885)

Ornithology of North Carolina : A list of the birds of North Carolina, with notes of each species - Smithwick, John Washington Pearce. (1897)

The Osprey (The Osprey Co, 1900)

Osteological studies of the subfamily of Ardeinae. Pt. 1, 2 - Shufeldt, Robert Wilson 1850 -1934 (1889)

O.S.U. naturalist - Ohio State University. Biological Club. (Biological Club of Ohio State University, 1901)

O.S.U. naturalist - Ohio State University. Biological Club. (Biological Club of Ohio State University, 1902)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1887)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1888)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1889)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1890)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1891)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1898)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1899)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1900)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1901)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1902)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1910)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1911)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1915)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1917)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1918)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1919)

Our birds in their haunts : a popular treatise on the birds of eastern North America - Langille, J. H. (James Hibbert), 1841 -1923 (Orange Judd, 1892)

Our country's birds and how to know them. A guide to all the birds of Great Britain - Gordon, W. J. (Simpkin, Marshall, Hamilton, Kent, 1892)

Our living world; an artistic edition of the Rev. J. G. Wood's Natural history of animate creation - Wood, J. G. (John George), 1827 -1889 (S. Hess, 1885)

Our northern and eastern birds : containing descriptions of the birds of the northern and eastern states and British provinces; together with a history of their habits, times of arrival and departure, their distribution, food, song, time of breeding, and a careful and accurate description of their nests and eggs - Samuels, Edward A. (Edward Augustus), 1836 -1908 (R. Worthington, 1883)

Our northern and eastern birds. Containing descriptions of the birds of the northern and eastern states and British provinces; together with a history of their habits, times of arrival and departure, their distribution, food, song, time of breeding, and a careful and accurate description of their nests and eggs ... - Samuels, Edward A. (Edward Augustus), 1836 -1908 (R. Worthington, 1883)

Our northern and eastern birds containing descriptions of the birds of the northern and eastern states and British provinces, together with a history of their habits, times of arrival and departure, their distribution, food, song, time of breeding, and a careful and accurate description of their nests and eggs ; with illustrations of many species of the birds and accurate figures of their eggs - Samuels, Edward A. (Edward Augustus), 1836 -1908 (R. Worthington, 1883)

Pacific coast avifauna - Cooper Ornithological Club. (Cooper Ornithological Club, 1902)

Pacific coast avifauna - Cooper Ornithological Club. (Cooper Ornithological Club, 1909)

Pacific coast avifauna - Cooper Ornithological Club. (Cooper Ornithological Club, 1912)

Pacific coast avifauna - Cooper Ornithological Club. (Cooper Ornithological Club, 1913)

Pacific coast avifauna - Cooper Ornithological Club. (Cooper Ornithological Club, 1914)

Pacific coast avifauna - Cooper Ornithological Club. (Cooper Ornithological Club, 1915)

Pacific coast avifauna - Cooper Ornithological Club. (Cooper Ornithological Club, 1919)

Pacific coast avifauna - Cooper Ornithological Club. (Cooper Ornithological Club, 1921)

Pamphlets on forestry in West Virginia (1900)

Parasitology - British Society for Parasitology. (Cambridge University Press, 1916)

Part I. Palæontology - Hall, James, 1811 -1898 (Govt. print. off, 1877)

P.D. Skaar's Montana bird distribution - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2012)

P.D. Skaar's Montana bird distribution - Bergeron, Dwight. (Montana Natural Heritage Program, 1992)

P.D. Skaar's Montana bird distribution - Skaar, Palmer David. (Montana Natural Heritage Program, 1996)

Pennsylvania bird life; a manual of the birds of Pennsylvania; treating especially of their food, from examinations of several thousand stomachs, made during all seasons of the year, with descriptions of the birds, their nests, eggs and habits - Warren, Benjamin Harry, 1858 -1926 (Penn'a., Pub by the author, 1892)

Phytoneuron (Guy L. Nesom, 2012)

Phytoneuron (Guy L. Nesom, 2013)