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 slope of Los Angeles County : a list with brief notes - Grinnell, Joseph, 1877 -1939 (Pasadena Academy of Sciences], 1898)

Birds of the Rockies - Keyser, Leander S. (Leander Sylvester), 1856 -1937 (A. C. McClurg and co, 1902)

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)

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

Birds of village and field a bird book for beginners - Bailey, Florence Merriam, 1863 -1948 (McClelland & Goodchild, 1898)

The birds of Virginia - Bailey, Harold H. (Harold Harris), 1878 -1962 (J. P. Bell Company, Inc, 1913)

The birds of Washington : a complete, scientific and popular account of the 372 species of birds found in the state - Bowles, John Hooper, 1875 -1934 (Occidental Pub. Co, 1909)

The birds of Washington; a complete, scientific and popular account of the 372 species of birds found in the state - Bowles, John Hooper, 1875 -1934 (The Occidental Pub. Co, 1909)

Birds of Washington and vicinity : including adjacent parts of Maryland and Virginia - Bailey, Florence Merriam, 1863 -1948 (Woodward & Lothrop, 1902)

Birds of Washington and vicinity, including adjacent parts of Maryland and Virginia - Maynard, Lucy Warner, 1852 -1936 (1898)

Birds of West Virginia, their economic value and aesthetic beauty ... - West Virginia. State ornithologist. (1923)

Birds of western Canada - Taverner, P. A. (Percy Algernon), 1875 -1947 (King's Printer, 1926)

Birds of western New York : with notes - Short, Ernest H. (A.M. Eddy, 1893)

Birds of Worcester county - Worcester Natural History Society. (Prouty-Dodge Pr. Co, 1911)

The birds of Wyoming - Knight, Wilbur C. (Wilbur Clinton), 1858 -1903 (Wyoming Experiment Station], 1902)

The birds of Wyoming - Knight, Wilbur C. (Wilbur Clinton), 1858 -1903 (Wyoming Experiment Station, 1902)

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

The blowflies of North America - Hall, David G. (Thomas Say Foundation, 1948)

Blue jay - Saskatchewan Natural History Society. (Saskatchewan Natural History Society, 1991)

Blue jay - Saskatchewan Natural History Society. (Saskatchewan Natural History Society, 1966)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1952)

The book of woodcraft - Seton, Ernest Thompson, 1860 -1946 (The Sun dial press, inc, 1939)

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Bulletin - Ridgway Ornithological Club. (American field, 1887)

Bulletin - United States National Museum (G.P.O, 1907)

Bulletin - Natural History Society of Maryland (The Society, 1933)

Bulletin - Colorado Agricultural Experiment Station (Colorado State University Experiment Station, 1897)

Bulletin - Colorado Agricultural Experiment Station (Colorado State University Experiment Station, 1898)

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

Bulletin - Essex County Ornithological Club of Massachusetts. (1931)

Bulletin - National Museum of Canada. (National Museum of Canada, 1926)

Bulletin - National Museum of Canada. (National Museum of Canada, 1929)

Bulletin - United States National Museum (G.P.O, 1960)

Bulletin - United States National Museum (G.P.O, 1961)

Bulletin - United States National Museum (G.P.O, 1963)

Bulletin - United States National Museum (G.P.O, 1968)

Bulletin - National Museum of Canada. (National Museum of Canada, 1946)

Bulletin - National Museum of Canada. (National Museum of Canada, 1952)

Bulletin - National Museum of Canada. (National Museum of Canada, 1967)

Bulletin - Biological Survey - United States. Bureau of Biological Survey. (Govt. print. off, 1888)

Bulletin - Biological Survey - United States. Bureau of Biological Survey. (Govt. print. off, 1893)

Bulletin - Biological Survey - United States. Bureau of Biological Survey. (Govt. print. off, 1895)

Bulletin - Biological Survey - United States. Bureau of Biological Survey. (Govt. print. off, 1900)

Bulletin - Biological Survey - United States. Bureau of Biological Survey. (Govt. print. off, 1908)

Bulletin - Biological Survey - United States. Bureau of Biological Survey. (Govt. print. off, 1911)

Bulletin - Illinois. Natural History Survey Division (State of Illinois, Dept. of Registration and Education, Natural History Survey Division, 1961)

Bulletin of the American Museum of Natural History - Allen, J. A. (Joel Asaph), 1838 -1921 (American Museum of Natural History, 1893)

Bulletin of the American Museum of Natural History - Allen, J. A. (Joel Asaph), 1838 -1921 (American Museum of Natural History, 1908)

Bulletin of the Bird Club of Princeton University - Scott, William Earl Dodge, 1852 -1910 (The Club, 1901)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1899)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1905)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1920)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1957)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1966)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1984)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1991)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1992)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1993)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1998)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2002)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2003)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2009)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2010)

Bulletin of the Brooklyn Entomological Society - Brooklyn Entomological Society (The Society, 1938)

Bulletin of the Essex Institute - Essex Institute. (Essex Institute, 1872)

Bulletin of the Essex Institute - Essex Institute. (Essex Institute, 1873)

Bulletin of the Essex Institute - Essex Institute. (Essex Institute, 1874)

Bulletin of the Essex Institute - Essex Institute. (Essex Institute, 1875)