The book of birds; common birds of town and country and American game birds - Fuertes, Louis Agassiz, 1874 -1927 (National Geographic Society, 1921)

Boulder reveries - Blatchley, W. S. (Willis Stanley), 1859 -1940 (The Nature publishing company, 1906)

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The breeding birds of Pennsylvania - Harlow, Richard Cresson. (1913)

Brehms thierleben, allgemeine kunde des thierreichs - Brehm, Alfred Edmund, 1829 -1884 (Verlag des Bibliographischen instituts, 1879)

Brehms Tierleben; allgemeine kunde des thierreichs. Mit 1910 abbildungen im text, 11 karten und 180 tafeln in farbendruck und holzschnitt - Brehm, Alfred Edmund, 1829 -1884 (Bibliographisches Institute, 1893)

Brehms Tierleben : allgemeine Kunde des Tierreichs : mit 1800 Abbildungen im Text, 9 Karten und 180 Tafeln in Farbendruck und Holzschnitt - Brehm, Alfred Edmund, 1829 -1884 (Bibliographisches Institut, 1892)

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Brigham Young University science bulletin. Biological series - Brigham Young University. (Brigham Young University, 1967)

Brigham Young University science bulletin. Biological series - Brigham Young University. (Brigham Young University, 1968)

Brimleyana - North Carolina State Museum of Natural History. (North Carolina State Museum of Natural History], 1980)

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Brimleyana - North Carolina State Museum of Natural History. (North Carolina State Museum of Natural History], 1989)

British birds (1917)

British birds (1940)

British birds (1951)

British birds (1959)

British birds (1978)

British birds (1979)

British birds (1980)

British birds (1981)

British birds (1982)

British birds (1983)

British birds (1984)

British birds (1985)

British birds (1986)

British birds (1987)

British birds (1988)

British birds (1989)

British birds (1990)

British birds (1991)

British birds (1992)

British birds (1993)

British birds (1994)

British birds (1995)

British birds (1996)

British birds (1997)

British birds (1998)

British birds (1999)

British birds (2000)

British birds (2001)

British birds (2002)

British birds (2003)

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

Bulletin - New York State Museum. (University of the State of New York, 1951)

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

Bulletin - Natural History Society of Maryland (The Society, 1938)

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

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

Bulletin - Porto Rico Agricultural Experiment Station. (G.P.O, 1918)

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

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

Bulletin - New York State Museum. (University of the State of New York, State Education Dept, 2003)

Bulletin - National Museum of Canada. (National Museum of Canada, 1934)

Bulletin - United States National Museum (G.P.O, 1926)

Bulletin - United States National Museum (G.P.O, 1927)

Bulletin - United States National Museum (G.P.O, 1929)

Bulletin - United States National Museum (G.P.O, 1931)