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La biodiversidad en Michoacán: estudio de estado - Leal Nares, Oscar Adrián (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2005)

La biodiversidad en Veracruz : estudio de estado - Cruz Angón, Andrea (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2011)

La biodiversidad en Zacatecas estudio de estado - Cruz Angón, Andrea (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2020)

Biodiversitas - Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO) (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad, (CONABIO), 2002)

Biodiversitas - Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO) (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad, (CONABIO), 2015)

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Biologia Centrali-Americana :zoology, botany and archaeology - Godman, Frederick Du Cane, 1834 -1919 (Published for the editors by R. H. Porter], 1879)

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Biological investigation in Alaska and Yukon territory : I. East Central Alaska. II. The Ogilvie range, Yukon. III. The Macmillan River, Yukon - Osgood, Wilfred Hudson, 1875 -1947 (Government Printing Office, 1909)

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Biophysical land classification, range assessment and significant features assessment of the Hand Hills Ecological Reserve - Cornish, Beth. (Alberta Environmental Protection, Resource Data Division, 1997)

Biophysical overview, significant, sensitive and disturbance features of the Saddle Hills, Alberta - Bentz, Jerry A. (GEOWEST Environmental Consultants Ltd, 1999)

Biophysical overview, significant, sensitive and disturbance features of the Eagle Butte sensitive area - Geowest Environmental Consultants Ltd. (GEOWEST Environmental Consultants Ltd, 1996)

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Bird blow flies (Protocalliphora) in North America (Diptera: Calliphoridae), with notes on the Palearctic species - Sabrosky, Curtis W. (Curtis Williams), 1910 -1997 (Smithsonian Institution Press, 1989)

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Bird homes. The nests, eggs and breeding habits of the land birds breeding in the eastern United States; with hints on the rearing and photographing of young birds - Dugmore, A. Radclyffe (Arthur Radclyffe), 1870 -1955 (Doubleday & McClure Co, 1904)

Bird homes : The nests, eggs and breeding habits of the land birds breeding in the eastern United States with hints on the rearing and photographing of young birds - Dugmore, A. Radclyffe (Arthur Radclyffe), 1870 -1955 (Doubleday, Page & Co, 1903)

Bird homes : the nests, eggs and breeding habits of the land birds breeding in the eastern United States, with hints on the rearing and photographing of young birds / - Dugmore, A. Radclyffe (Arthur Radclyffe), 1870 -1955 (Doubleday & McClure,, 1920)

Bird homes. The nests, eggs and breeding habits of the land birds breeding in the eastern United States; with hints on the rearing and photographing of young birds - Dugmore, A. Radclyffe (Arthur Radclyffe), 1870 -1955 (Doubleday & McClure Co, 1900)

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Bird status and distribution on the Fort Pierre National Grassland, 2016 - Mares, Ruben, (Forest Service, Department of Agriculture, 2016)

Bird studies; an account of the land birds of eastern North America - Scott, William Earl Dodge, 1852 -1910 (G. P. Putnam's Sons, 1898)

Birdcraft : a field book of two hundred song, game, and water birds - Wright, Mabel Osgood, 1859 -1934 (Macmillan, 1895)

Birdcraft : a field book of two hundred song, game, and water birds - Fuertes, Louis Agassiz, 1874 -1927 (Macmillan Co, 1899)

Birdcraft : a field book of two hundred song, game, and water birds - Fuertes, Louis Agassiz, 1874 -1927 (Macmillan Co, 1900)

Birdcraft : a field book of two hundred song, game, and water birds - Fuertes, Louis Agassiz, 1874 -1927 (Macmillan Co, 1897)

Birds & nature magazine - Higley, William Kerr, 1860 -1908 (nature study publishing company [etc.], 1896)

Birds and mammals of the Stikine River region of northern British Columbia and southeastern Alaska - Swarth, Harry S. (Harry Schelwald), 1878 -1935 (University of California Press, 1922)

Birds and nature (A.W. Mumford, Publisher, 1900)

Birds and nature (A.W. Mumford, Publisher, 1904)

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

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

Birds in their relation to agriculture : the wealth of Montana as shown by statistics - Elrod, Morton J. (Morton John), 1863 -1953 ([s.n.], 1904)

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

Birds of a Maryland farm : a local study of economic ornithology - Judd, Sylvester D., 1871 -1905 (U.S. Dept. of Agriculture, Division of Biological Survey, 1902)

The birds of Albany County; a catalogue of the species recorded in this vicinity with notes on their lives and habits, and brief field-marks for aid in identification - Judd, Wilbur Webster. ([Press of Brandow printing co.], 1907)

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The birds of Amherst and vicinity, including nearly the whole of Hampshire county, Massachusetts - Clark, Hubert Lyman, 1870 -1947 (Press of Carpenter & Morehouse, 1906)

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

The birds of Brookline, Massachusetts - Howe, Reginald Heber, Jr. 1875 -1932 (Riverdale Press, C.A.W. Spencer, 1900)

Birds of Buzzard's Roost, one for each week, and other essays - Woollen, William Watson, 1838 -1921 (Scott-Miller Company, 1907)

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)

[Birds of Canada] - Brooks, Allan 1869 -1946 (National Museum of Canada, 1900)

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 Canada : with descriptions of their habits, food, nests, eggs, times of arrival and departure - Ross, Alexander Milton, 1832 -1897 (Rowsell, 1872)

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

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The birds of Colorado - Cooke, Wells W. (Wells Woodbridge), 1858 -1916 (State Agricultural College, Agricultural Experiment Station, 1897)

The birds of Connecticut - Bishop, Louis B. (Louis Bennett), 1865 -1950 (Printed for the State Geological and Natural History Survey, 1913)

The birds of Connecticut - State Geological; Natural History Survey of Connecticut. (Printed for the State Geological and Natural History Survey, 1913)

The birds of Durham and vicinity. An account of the birds known to have been found within twenty miles of the New Hampshire College of Agriculture and the Mehanic Arts - Dearborn, Ned (1903)

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 (F. A. Acland, 1922)

Birds of eastern Newfoundland - Cleveland Museum of Natural History ([Cleveland Museum of Natural History], 1939)

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

The birds of eastern North America - Maynard, C. J. (Charles Johnson), 1845 -1929 (Maynard, 1881)

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)

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The birds of eastern Pennsylvania and New Jersey, with introductory chapters on geographical distribution and migration - Stone, Witmer. 1866 -1939 (Delaware Valley Ornithological Club, 1894)

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

The birds of Erie and Presque Isle, Erie County, Pennsylvania - Todd, W. E. Clyde (Walter Edmond Clyde), 1874 -1969 (s.l, 1904)

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

The birds of Guyana (formerly British Guinna) : a check list of 720 species - Snyder, Dorothy Eastman. (Peabody Museum, 1966)

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)