The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1901)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1903)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1906)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1915)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1919)

Aus de Wanderjahren eines Naturforschers. Reisen und Forschungen in Afrika, Asien und Amerika ... Meist ornithologischen Studien - Hartert, Ernst, 1859 -1933 (R. Friedländer & Sohn [etc.], 1901)

Austral avian record; a scientific journal devoted primarily to the study of the Australian avifauna - Mathews, Gregory M 1876 -1949 (Witherby, 1913)

Austral avian record; a scientific journal devoted primarily to the study of the Australian avifauna - Mathews, Gregory M 1876 -1949 (Witherby, 1912)

Austral avian record; a scientific journal devoted primarily to the study of the Australian avifauna - Mathews, Gregory M 1876 -1949 (Witherby, 1915)

Austral avian record; a scientific journal devoted primarily to the study of the Australian avifauna - Mathews, Gregory M 1876 -1949 (Witherby, 1920)

As aves do Estado de S. Paulo - Ihering, H. von (Hermann), 1850 -1930 (Typ. a vapor de Hennies irmãos, 1898)

Aves nuevas del Paraguay. Continuación á Azara - Bertoni, Arnaldo de Winkelried, 1878 -1973 (Talleres nacionales de H. Kraus, 1901)

Aves polynesiae : a catalogue of the birds of the Polynesian subregion - Wiglesworth, Lionel W. (Lionel William), 1865 -1901 (R. Friedlaender & Sohn, 1891)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1905)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1922)

The avifauna of British India and its dependencies : a systematic account, with descriptions of all the known species of birds inhabiting British India, observations on their habits, nidification, &c., tables of their geographical distribution in Persia, Beloochistan, Afghanistan, Sind, Punjab, N.W. provinces, and the peninsular of India generally - Murray, James A., F.S.A.L. (Trübner, 1888)

Bacteria in relation to plant diseases - Smith, Erwin F. (Erwin Frink), 1854 -1927 (Carnegie Institution of Washington, 1911)

The bee-keeper's guide; or, Manual of the apiary - Cook, Albert John, 1842 -1916 (George W. York & company, 1902)

Beitrag zur fauna Centralpolynesiens. Ornithologie der Viti-, Samoa- und Tonga-inseln - Hartlaub, Gustav, 1814 -1900 (H. W. Schmidt, 1867)

Beiträge zur Kenntniss der Vogelfauna von Celebes - Blasius, Wilhelm, 1845 -1912 (Franklin-Verein, 1886)

Bericht über die Leistungen in der Naturgeschichte der Vögel - Pelzeln, August von, 1825 -1891 (1847)

Bericht über die Leistungen in der Naturgeschichte der Vögel - Pelzeln, August von, 1825 -1891 (1882)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1900)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1906)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1907)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1909)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1911)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1913)

A bibliography of birds : with special reference to anatomy, behavior, biochemistry. Part 4, Finding index - Field Museum of Natural History. (Field Museum of Natural History, 1959)

A bibliography of birds : with special reference to anatomy, behavior, biochemistry. Part 3, Subject index - Field Museum of Natural History. (Field Museum of Natural History, 1946)

Binomial and trinomial index to The auk, 1884-1940, also including the Nuttall bulletin, 1876-1883, and the A.O.U. check-list of North American birds (all seven editions) - Pollock, Andrew W. ([Andrew W. Pollock III], 2015)

La biodiversidad en Aguascalientes : estudio de estado - Cruz Angón, Andrea (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2008)

La biodiversidad en Michoacán estudio de estado 2 - Cruz Angón, Andrea (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2019)

Biologia centrali-americana: Aves - Godman, Frederick Du Cane, 1834 -1919 (R.H. Porter], 1897)

Biologia Centrali-Americana :zoology, botany and archaeology - Godman, Frederick Du Cane, 1834 -1919 (Published for the editors by R. H. Porter], 1897)

The Biological bulletin - Marine Biological Laboratory (Woods Hole, Mass.) (Marine Biological Laboratory, 1955)

The biologist's handbook of pronunciations - Jaeger, Edmund C. (Edmund Carroll) 1887 -1983 (Thomas, 1960)

The bird book : illustrating in natural colors more than seven hundred North American birds; also several hundred photographs of their nests and eggs - Reed, Chester A. (Chester Albert), 1876 -1912 (Doubleday, Page & company, 1915)

Bird guide - Reed, Chester A. (Chester Albert), 1876 -1912 (Musson, 1906)

Bird lice from the Tinamidae - Clay, Theresa (1943)

Bird notes - Foreign Bird Club. (Foreign Bird Club, 1913)

Birds - Heller, Edmund, 1875 -1939 (The Academy, 1904)

Birds and fishes - Kopman, Henry Hazlitt. (American Printing Co., Ltd, 1904)

The birds and mammals of the western slope of the Azuero peninsula <republic of Panama> - Aldrich, John W. (John Warren), 1906 -1995 (1937)

Birds - Baird, Spencer Fullerton, 1823 -1887 (1858)

Birds collected during the Whitney South Sea Expedition. 55, Notes on the birds of northern Melanesia. 1 - Mayr, Ernst, 1904 -2005 (The American Museum of Natural History, 1945)

Birds collected during the Whitney South Sea Expedition. 41, Notes on New Guinea birds. 6 - Mayr, Ernst, 1904 -2005 (The American Museum of Natural History, 1940)

Birds. Collected excerpts from v. 10 of Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (1900)

Birds from the islands of Romblon, Sibuyan, and Cresta de Gallo, Further notes on birds from Ticao, Cuyo, Culion, Calayan, Lubang, and Luzon - McGregor, Richard C. (Richard Crittenden), 1871 -1936 (Bureau of Public Printing, 1905)

Birds in Kansas - Thompson, Max C. (University of Kansas, Museum of Natural History, 1989)

Birds; a miscellaneous collection of 37 pamphlets about birds - Biological Society of Washington (1910-1913, 1914)

The birds of Africa, comprising all the species which occur in the Ethiopian region - Sclater, William Lutley, 1863 -1944 (Published for the author by R.H. Porter (18 Princes Street, Cavendish Square, W.), 1896)

The birds of Australia - Lucas, A. H. S. (Arthur Henry Shakespeare) 1853 -1936 (Whitcombe and Tombs Limited, 1911)

The Birds of Australia - Grönvold, Henrik, 1858 -1940 (Witherby & Co, 1910)

The Birds of Australia - Grönvold, Henrik, 1858 -1940 (Witherby & Co, 1920)

The Birds of Australia - Grönvold, Henrik, 1858 -1940 (Witherby & Co, 1924)

The Birds of Australia - Grönvold, Henrik, 1858 -1940 (Witherby & Co, 1925)

The birds of British Guiana : based on the collection of Frederick Vavasour McConnell - Chubb, Charles, 1851 -1924 (Bernard Quaritch, 1916)

Birds of Calayan and Fuga, Babuyan group - McGregor, Richard C. (Richard Crittenden), 1871 -1936 (1904)

The birds of California : a complete, scientific and popular account of the 580 species and subspecies of birds found in the state - Finley, William L. (William Lovell), 1876 -1953 (South Moulton Company, 1923)

The birds of Canada : with descriptions of their habits, food, nests, eggs, times of arrival and departure - Ross, Alexander Milton, 1832 -1897 (Rowsell and Hutchison, 1873)

The birds of Celebes and the neighbouring islands - Meyer, Adolf Bernhard, 1840 -1911 (R. Friedländer & Sohn, 1898)

Birds of Darjeeling and India - Mackintosh, L. J. (Printed by J.N. Banerjee & son, 1915)

The birds of east Pennsylvania and New Jersey - Turnbull, William Paterson, 1830 -1871 (H. Grambo & Co, 1869)

Birds of Eastern and Southern Asia - Balfour, Edward, 1813 -1889 (s.n, 1873)

Birds of eastern Canada - Taverner, P. A. (Percy Algernon), 1875 -1947 (J. de L. Taché, Printer, 1919)

Birds of eastern Canada - Taverner, P. A. (Percy Algernon), 1875 -1947 (J. de L. Tachprinter, 1919)

Birds of eastern Canada - Taverner, P. A. (Percy Algernon), 1875 -1947 (Acland, 1922)

Birds of eastern Canada - Taverner, P. A. (Percy Algernon), 1875 -1947 (F. A. Acland, 1922)

Birds of eastern North America - Reed, Chester A. (Chester Albert), 1876 -1912 (Doubleday, Page & Company, 1912)

The birds of eastern North America : known to occur east of the ninetieth meridian - Cory, Charles B. (Charles Barney), 1857 -1921 (Field Columbian Museum, 1899)

The birds of eastern North America known to occur east of the ninetieth meridian - Field Museum of Natural History. (Bay State Pub. Co, 1900)

The birds of eastern North America known to occur east of the ninetieth meridian - Field Columbian Museum. (Printed for the Field Columbian Museum [by A. Mudge], 1899)

The birds of El Salvador - Dickey, Donald R. (Donald Ryder), 1887 -1932 (Field Museum of Natural History, 1938)

The birds of Essex County, Massachusetts - Townsend, Charles Wendell, 1859 -1934 (The Club, 1905)

The Birds of Haiti and San Domingo - Cory, Charles B. (Charles Barney), 1857 -1921 (1885)

The birds of Illinois and Wisconsin - Cory, Charles B. (Charles Barney), 1857 -1921 (Field Museum of Natural History, 1909)

The birds of Illinois and Wisconsin - Cory, Charles B. (Charles Barney), 1857 -1921 (1909)

The birds of India : being a natural history of all the birds known to inhabit continental India, with descriptions of the species, genera, families, tribes, and orders, and a brief notice of such families as are not found in India, making it a manual of ornithology specially adapted for India - Jerdon, T. C. (Thomas Claverhill), 1811 -1872 (Printed for the Author by the Military Orphan Press, 1862)

The birds of India : being a natural history of all the birds known to inhabit continental India, with descriptions of the species, genera, families, tribes, and orders, and a brief notice of such families as are not found in India, making it a manual of ornithology specially adapted for India - Jerdon, T. C. (Thomas Claverhill), 1811 -1872 (Printed for the Author by the Military Orphan Press, 1864)

The birds of Indiana; a descriptive catalog of the birds that have been observed within the state, with an account of their habits - Butler, Amos W. (Amos William), 1860 -1937 (W. B. Burford, Contractor for State Printing, 1898)