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 Campeche : estudio de Estado - Villalobos-Zapata, Guillermo Jorge (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2010)

La biodiversidad en Colima estudio de estado - Cruz Angón, Andrea (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2016)

La biodiversidad en Guanajuato: estudio de Estado - Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO) (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2012)

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

La biodiversidad en Tabasco estudio de estado - 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)

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Biometrika - Pearson, Karl, 1857 -1936 (University Press [etc.], 1920)

The bird life of Texas - Fuertes, Louis Agassiz, 1874 -1927 (University of Texas Press, 1974)

Bird notes - Foreign Bird Club. (Foreign Bird Club, 1922)

Birds and nature in natural colors : being a scientific and popular treatise on four hundred birds of the United States and Canada (A.W. Mumford, Publisher, 1913)

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

Birds' nesting in India: a calendar of the breeding seasons, and a popular guide to the habits and haunts of birds - Marshall, G. F. L. (George Frederick Leycester), 1843 -1934 (Calcutta Central Press, 1877)

Birds' nesting in India. A calendar of the breeding seasons, and a popular guide to the habits and haunts of birds. Illustrated - Marshall, G. F. L. (George Frederick Leycester), 1843 -1934 (Calcutta Central Press, 1877)

The birds of Australia - Gould, John 1804 -1881 (Printed by R. and J. E. Taylor; pub. by the author, 1848)

The birds of Australia - Broinowski, Gracius J. (Gracius Joseph), 1837 -1913 (C. Stuart & co, 1890)

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

The birds of Australia - Broinowski, Gracius J. (Gracius Joseph), 1837 -1913 (C. Stuart & co, 1891)

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)

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 California : a complete, scientific and popular account of the 580 species and subspecies of birds found in the state - Brooks, Allan 1869 -1946 (South Moulton, 1923)

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, 1923)

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

The birds of Chile - Hellmayr, Carl Eduard, 1878 -1944 (Field Museum of Natural History, 1932)

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

The birds of eastern North America : with original descriptions of all the species which occur east of the Mississippi River, between the Arctic circle and the Gulf of Mexico, with full notes upon their habits, etc - Maynard, C. J. (Charles Johnson), 1845 -1929 (C.J. Maynard & co, 1896)

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

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

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)

Birds of La Plata - Hudson, W. H. (William Henry), 1841 -1922 (E. P. Dutton, 1920)

The birds of North America - Studer, Jacob Henry, 1840 -1904 (Jacob Studer, 1873)

The birds of North America : one hundred and nineteen artistic colored plates representing the different species and varieties drawn and colored from nature : including a copious text giving a popular account of their habits and characteristics, based on observations made in the field by the most eminent writers on ornithology : prefaced by a systematic table and index to page, plate and figure - Chapman, Frank M. (Frank Michler), 1864 -1945 (Published under the auspices of the Natural Science Association of America, 1903)

The birds of North America; one hundred and nineteen artistic colored plates representing the different species and varieties, drawn and colored from nature. Including a copious text giving a popular account of their habits and characteristics, based on observations made in the field by the most eminent writers on ornithology. Prefaced by a systematic table and index to page, plate and figure. Arranged according to the classification adopted by the American Ornithologists' Union - Chapman, Frank M. (Frank Michler), 1864 -1945 (Published under the auspices of the Natural Science Association of America, 1895)

The birds of North America : the descriptions of species based chiefly on the collections in the Museum of the Smithsonian Institution - Baird, Spencer Fullerton, 1823 -1887 (J.B. Lippincott & Co, 1860)

Birds of North Carolina - Pearson, T. Gilbert (Thomas Gilbert), 1873 -1943 (Edwards & Broughton printing co., state printers, 1919)

Birds of Porto Rico - Wetmore, Alexander, 1886 -1978 (U.S. Dept. of Agriculture, 1916)

The birds of South Africa - Sclater, William Lutley, 1863 -1944 (R. H. Porter, 1906)

The birds of South Africa - Sharpe, Richard Bowdler, 1847 -1909 (Bernard Quaritch, 1875)

The birds of South Africa : a descriptive catalogue of all the known species occurring south of the 28th parallel of south latitude - Layard, Edgar Leopold, 1824 -1900 (Juta, 1867)

The birds of South America - Swann, H. Kirke (Harry Kirke), 1871 -1926 (R. H. Porter [etc, 1912)

The birds of the Bahama Islands : containing many birds new to the Islands, and a number of undescribed winter plumages of North American birds - Cory, Charles B. (Charles Barney), 1857 -1921 (Estes & Lauriat, 1890)

Birds of the Bahama islands; containing many birds new to the islands, and a number of undescribed winter plumages of North American species - Cory, Charles B. (Charles Barney), 1857 -1921 (The author, 1880)

Birds of the Harold Hall Australian Expeditions, 1962-1970 : a report on the collections made for the British Museum (Natural History) - Hall, B. P. (Beryl Patricia) (Trustees of the British Museum, 1974)

The birds of the Japanese Empire - Seebohm, Henry, 1832 -1895 (R. H. Porter, 1890)

The birds of the Leeward islands, Caribbean sea - Cory, Charles B. (Charles Barney), 1857 -1921 (1909)

Birds of the New York city region - Linnaean Society of New York ([American Museum of Natural History], 1923)

Birds of the Northwest: a hand-book of the ornithology of the region drained by the Missouri River and its tributaries - Coues, Elliott, 1842 -1899 (Govt. Print. Off, 1874)

Birds of the Pacific coast, including a brief account of the distribution and habitat of one hundred and eighteen birds that are more or less common to the Pacific coast states and British Columbia, many of which are found eastward to the Rocky mountains and beyond - Eliot, Willard Ayres, 1871 - (G. P. Putnam's sons, 1923)

Birds of the United States east of the Rocky Mountains, a manual for the identification of species in hand or in the bush - Apgar, A. C. (Austin Craig), 1838 -1908 (American book company, 1898)

Birds of the United States east of the Rocky Mountains; a manual for the identification of species in hand or in the bush - Apgar, A. C. (Austin Craig), 1838 -1908 (American Book Co, 1898)

The birds of the West Indies : including all species known to occur in the Bahama Islands, the Greater Antilles, the Caymans, and the Lesser Antilles, excepting the islands of Tobago and Trinidad - Cory, Charles B. (Charles Barney), 1857 -1921 (Estes & Lauriat, 1889)

Birds of the world; a popular account - Ridgway, Robert, 1850 -1929 (Holt, 1909)

Birds protected by federal law - U.S. Fish; Wildlife Service (U.S. Dept. of the Interior, Fish and Wildlife Service, 1965)

Birds: the elements of ornithology ; with 174 illustrations whereof 140 are original drawings - Mivart, St. George Jackson, 1827 -1900 (R.H. Porter, 1892)

Boletim do Museu Paraense de Historia Natural e Ethnographia (Museu Goeldi) - Museu Goeldi. (Typ. e Encadernação do Instituto Lauro Sodré, 1900)

Boletín de la Sociedad Physis - Sociedad Physis. (Coni, 1912)

Boletín del Museo Nacional de Chile - Museo Nacional de Chile. (Museo Nacional de Chile, 1910)

Bollettino dei musei di zoologia ed anatomia comparata della R. Università di Torino - Università di Torino. Musei di zoologia ed anatomia comparata. (Accame, 1900)

Bollettino della Società zoologica italiana - Società zoologica italiana. (La Società, 1900)

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Bonner zoologische Monographien (Zoologisches Forschungsinstitut und Museum Alexander Koenig, 1987)

The breeding seasons of East African birds - Brown, Leslie, 1917 -1980 (East Africa Natural History Society, 1980)

British birds (1985)

British birds (1991)

British Ornithologists' Club occasional publications - British Ornithologists' Club. (British Ornithologists' Club, 1997)

Brockhaus' Konversations-Lexikon (F.A. Brockhaus, 1893)

Buceros : ENVIS newsletter : avian ecology and inland wetlands - Bombay Natural History Society. (Bombay Natural History Society, 2004)

Bullet and shot in Indian forest, plain and hill. With hints to beginners in Indian shooting - Russell, Charles Edward Mackintosh. (W. Thacker and Co, 1900)

Bulletin - East Africa Natural History Society. (East Africa Natural History Society, 1978)

Bulletin - United States National Museum (G.P.O, 1909)

Bulletin - United States National Museum (G.P.O, 1925)