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

Bericht über die Leistungen in der Naturgeschichte der Vögel - Pelzeln, August von, 1825 -1891 (1888)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1896)

Bibliotheca zoologica II. verzeichness der schriften über zoologie welche in den periodischen werken enthalten und vom jahre 1861-1880 selbständig erschienen sind, mit einschluss der allgemein-naturgeschichtlichen, periodischen und paleontologischen schriften - Carus, Julius Victor, 1823 -1903 (Wilhelm Engelmann, 1887)

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 Chiapas : estudio de estado - Cruz Angón, Andrea (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2013)

La biodiversidad en Chihuahua : estudio de estado - Barajas, Nélida (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2014)

La biodiversidad en Coahuila estudio de estado - Cruz Angón, Andrea (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2018)

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 - Leal Nares, Oscar Adrián (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2005)

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)

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

Biodiversitas - Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO) (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad, (CONABIO), 2009)

Biodiversity in harvested areas in relation to standing live trees and snags : update 1997/98 - Alberta. Alberta Environmental Protection. (Alberta Environmental Protection, 1998)

Biologia centrali-americana: Aves - Godman, Frederick Du Cane, 1834 -1919 (R.H. Porter], 1879)

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

A biological investigation of the Athabaska-Mackenzie region - Merriam, C. Hart (Clinton Hart), 1855 -1942 (Govt. print. off, 1908)

A biological investigation of the Hudson Bay region - Merriam, C. Hart (Clinton Hart), 1855 -1942 (Govt. Print. Off, 1902)

Biological review of Ontario (Biological Society of Ontario, 1894)

The Biological review of Ontario - Biological Society of Ontario (Biological Society of Ontario, 1894)

Biological survey of Texas : Life zones, with characteristic species of mammals, birds, reptiles, and plants. Reptiles, with notes of distribution. Mammals, with notes on distribution, habits and economic importance - Merriam, C. Hart (Clinton Hart), 1855 -1942 (G.P.O, 1905)

A biological survey of the sand dune region on the south shore of Saginaw Bay, Michigan - Michigan. Geological Survey. (Wynkoop, Hallenbeck, Crawford co., state printers, 1911)

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 (C. K. Reed, 1914)

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. Part 2, Land birds east of the Rockies - Reed, Chester A. (Chester Albert), 1876 -1912 (Musson Book Co, 1909)

Bird guide. pt. 2, Land birds east of the Rockies, from parrots to bluebirds - Reed, Chester A. (Chester Albert), 1876 -1912 (C. K. Reed, 1909)

Bird guide. from parrots to bluebirds. Part 2, Land birds east of the Rockies - Reed, Chester A. (Chester Albert), 1876 -1912 (Reed, 1906)

Bird guide : land birds east of the Rockies from parrots to bluebirds - Reed, Chester A. (Chester Albert), 1876 -1912 (Doubleday, Page, 1916)

Bird guide : land birds east of the Rockies from Parrots to Bluebirds - Reed, Chester A. (Chester Albert), 1876 -1912 (Doubleday, Page, and Co, 1926)

Bird guide, part 2 : land birds east of the Rockies, from parrots to bluebirds - Reed, Chester A. (Chester Albert), 1876 -1912 (Chas. K. Reed, 1912)

Bird homes - Dugmore, A. Radclyffe (Arthur Radclyffe), 1870 -1955 (Doubleday, Page, 1902)

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, 1905)

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)

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

Bird-life : a guide to the study of our common birds - Seton, Ernest Thompson, 1860 -1946 (D. Appleton, 1899)

Bird-life : a guide to the study of our common birds - Seton, Ernest Thompson, 1860 -1946 (1901)

Bird-life : a guide to the study of our common birds - Seton, Ernest Thompson, 1860 -1946 (D. Appleton and company, 1897)

Bird-life; a guide to the study of our common birds - Seton, Ernest Thompson, 1860 -1946 (D. Appleton and company, 1900)

Bird-life : a guide to the study of our common birds - Seton, Ernest Thompson, 1860 -1946 (D. Appleton, 1912)

Bird-life : a guide to the study of our common birds - Seton, Ernest Thompson, 1860 -1946 (D. Appleton, 1915)

Bird-life : a guide to the study of our common birds - Seton, Ernest Thompson, 1860 -1946 (D. Appleton, 1919)

Bird-life : a guide to the study of our common birds - Seton, Ernest Thompson, 1860 -1946 (Appleton, 1900)

Bird-life; a guide to the study of our common birds - Seton, Ernest Thompson, 1860 -1946 (D. Appleton & co, 1899)

Bird-life; a guide to the study of our common birds - Seton, Ernest Thompson, 1860 -1946 (D. Appleton and company, 1898)

Bird-life : a guide to the study of our common birds - Seton, Ernest Thompson, 1860 -1946 (McClelland, 1901)

Bird life of North Carolina's Shining Rock Wilderness - North Carolina Biological Survey. ([North Carolina Biological Survey, N.C. State Museum of Natural Sciences], 1994)

Bird-lore - National Association of Audubon Societies for the Protection of Wild Birds; Animals. (National Association of Audubon Societies, 1905)

Bird lore - National Association of Audubon Societies for the Protection of Wild Birds; Animals. (Macmillan Co, 1905)

Bird-lore - National Association of Audubon Societies for the Protection of Wild Birds; Animals. (National Association of Audubon Societies, 1913)

Bird-lore - National Association of Audubon Societies for the Protection of Wild Birds; Animals. (National Association of Audubon Societies, 1915)

Bird migration - Cooke, Wells W. (Wells Woodbridge), 1858 -1916 (U.S. Dept. of Agriculture, 1915)

Bird migration in the Mississippi Valley - Widmann, Otto (The American Field, 1883)

Bird neighbors : an introductory acquaintance with one hundred and fifty birds commonly found in the gardens, meadows, and woods about our homes - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, 1918)

Bird neighbors : an introductory acquaintance with one hundred and fifty birds commonly found in the gardens, meadows, and woods about our homes - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Double Day, Page, 1908)

Bird neighbors : an introductory acquaintance with one hundred and fifty birds commonly found in the gardens, meadows, and woods about our homes - Burroughs, John, 1837 -1921 (Doubleday & McClure Co, 1897)

Bird neighbors : an introductory acquaintance with one hundred and fifty birds commonly found in the gardens, meadows, and woods about our homes - Burroughs, John, 1837 -1921 (G.N. Morang, 1903)

Bird neighbors. An introductory acquaintance with one hundred and fifty birds commonly found in the gardens, meadows, and woods about our homes - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Grosset & Dunlap, 1904)

Bird neighbors; an introductory acquaintance with one hundred and fifty birds commonly found in the gardens, meadows, and woods about our homes - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Garden City Pub. Co, 1922)

Bird neighbors. An introductory acquaintance with one hundred and fifty birds commonly found in the gardens, meadows, and woods about our homes - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday & McClure, 1900)

Bird neighbors. An introductory acquaintance with one hundred and fifty birds commonly found in the gardens, meadows, and woods about our homes - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, Page & Co, 1903)

Bird neighbors. An introductory acquaintance with one hundred and fifty birds commonly found in the gardens, meadows, and woods about our homes - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, Page & Co, 1904)

Bird neighbors. An introductory acquaintance with one hundred and fifty birds commonly found in the gardens, meadows, and woods about our homes - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, Page, 1916)

Bird neighbors : an introductory acquaintance with one hundred and fifty birds commonly found in the gardens, meadows, and woods about our homes - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday & McClure, 1899)

Bird neighbors : an introductory acquaintance with one hundred and fifty birds commonly found in the gardens, meadows, and woods about our homes - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday & McClure, 1898)

Bird status and distribution on the Cedar River and Grand River National Grasslands, 2011 - Dakota Prairie National Grasslands (Agency : U.S.) (U.S. Dept. of Agriculture, Forest Service, Dakota Prairie Grasslands, 2011)

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 about our homes - Sage, John Hall, 1847 -1925 (1887)

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

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

Birds around New York City, where and when to find them - Linnaean Society of New York (1942)

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

Birds collected in the State of Hidalgo, Mexico - Bjelland, Alfred D. (Museum of Texas Tech University, 1977)

Birds from the Yucatan peninsula - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (1941)

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)

Birds of America - Pearson, T. Gilbert (Thomas Gilbert), 1873 -1943 (The University Society, 1923)

The birds of America : from drawings made in the United States and their territories - Audubon, John James, 1785 -1851 (J.B. Chevalier, 1841)

The birds of America : from drawings made in the United States and their territories - Audubon, John James, 1785 -1851 (J.B. Chevalier, 1844)

The birds of America, from drawings made in the United States and their territories - Audubon, John James, 1785 -1851 (G.R. Lockwood, 1871)

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

Birds of Arkansas - Howell, Arthur H. (Arthur Holmes), 1872 -1940 (U.S. Dept. of Agriculture, Biological Survey, 1911)

Birds of Bear Mountain Park; a check list ... - Carr, William H. (William Henry), 1902 -1985 (Bear Mountain Trailside Museums, 1940)

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

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)

Birds of California : an introduction to more than three hundred common birds of the state and adjacent islands, with a supplementary list of rare migrants, accidental visitants, and hypothetical subspecies - Horsfall, R. Bruce 1869 -1948 (A.C. McClurg, 1912)

Birds of California; an introduction to more than three hundred common birds of the state and adjacent islands, with a supplementary list of rare migrants, accidental visitants, and hypothetical subspecies - Wheelock, Irene Grosvenor (A.C. McClurg, 1916)

Birds of California; an introduction to more than three hundred common birds of the state and adjacent islands - Wheelock, Irene Grosvenor (A.C. McClurg & Co, 1912)

Birds of California; an introduction to more than three hundred common birds of the state and adjacent islands, with a supplementary list of rare migrants, accidental visitants, and hypothetical subspecies - Wheelock, Irene Grosvenor (A. C. McClurg, 1904)

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

Birds of Chautauqua county : an address delivered before the Chautauqua Society of History and Natural Science at its semi-annual meeting held in Jamestown, January 29, 1885 - Edson, John M. (Geo. H. Tiffany, 1886)

Birds of Cimarron National Grassland - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain, Forest and Range Experiment Station, 1996)

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)