British birds (2003)

British birds (2004)

British birds (2005)

British birds (2006)

British birds (2007)

British birds (2008)

British birds (2009)

British birds (2010)

British birds (2011)

British birds (2012)

British birds (2013)

British birds in their haunts - Johns, C. A. (Charles Alexander), 1811 -1874 (Society for Promoting Christian Knowledge, 1893)

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Buceros : ENVIS newsletter : avian ecology and inland wetlands - Bombay Natural History Society. (Bombay Natural History Society, 2001)

Buceros : ENVIS newsletter : avian ecology and inland wetlands - Bombay Natural History Society. (Bombay Natural History Society, 2002)

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

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Budapest és környéke természetrajzi, orvosi és közmivelődési leirása : Budapest főváros : a magyar orvosok és természetvizsgálók XX. nagy-gyülésére emlékül - Dulácska, Géza, (Nyomatott a Magyar Királyi Egyetemi Könyvnyomdában, 1879)

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

Bulletin - Essex County Ornithological Club of Massachusetts. (1922)

Bulletin - East Africa Natural History Society. (East Africa Natural History Society, 1983)

Bulletin - Société des amis des sciences naturelles de Rouen. (1891)

Bulletin - East Africa Natural History Society. (East Africa Natural History Society, 1998)

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

Bulletin - New York State Museum. (University of the State of New York, State Education Dept, 2002)

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, 1921)

Bulletin - United States National Museum (G.P.O, 1923)

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

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

Bulletin - United States National Museum (G.P.O, 1930)

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

Bulletin - United States National Museum (G.P.O, 1938)

Bulletin - United States National Museum (G.P.O, 1845)

Bulletin - United States National Museum (G.P.O, 1955)

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 - National Museum of Canada. (National Museum of Canada, 1959)

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

Bulletin de la Société impériale des naturalistes de Moscou - Moskovskoe obshchestvo liubitelei prirody. (Société impériale des naturalistes de Moscou, 1831)

Bulletin de la Société impériale des naturalistes de Moscou - Moskovskoe obshchestvo liubitelei prirody. (Société impériale des naturalistes de Moscou, 1883)

Bulletin de la Société impériale des naturalistes de Moscou - Moskovskoe obshchestvo liubitelei prirody. (Société impériale des naturalistes de Moscou, 1892)

Bulletin de la Société impériale des naturalistes de Moscou - Moskovskoe obshchestvo liubitelei prirody. (Société impériale des naturalistes de Moscou, 1897)

Bulletin de la Société portugaise des sciences naturelles - Sociedade Portuguesa de Ciências Naturais. (Société portugaise des sciences naturelles, 1910)

Bulletin de la Société vaudoise des sciences naturelles - Société vaudoise des sciences naturelles. (Blanchard, 1900)

Bulletin de la Société zoologique de Genève - Société zoologique de Genève. (Soci zoologique de Gen, 1907)

Bulletin de la Société zoologique de France - Société zoologique de France. (La Société, 1907)

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Bulletin de l'Académie impériale des sciences de St.-Pétersbourg - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (Imprimerie de l'Académie Impériale des Sciences, 1894)

Bulletin du Muséum National d'Histoire Naturelle Supplément - Muséum national d'histoire naturelle (France) (Le Muséum, 1974)

Bulletin du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Imprimerie nationale, 1964)

Bulletin du Muséum national d'histoire naturelle Section A Zoologie, biologie et écologie animales - Muséum national d'histoire naturelle (France) (Muséum national d'histoire naturelle, 1986)

Bulletin du Muséum national d'histoire naturelle Série 3 Zoologie - Muséum national d'histoire naturelle (France) (1975)

Bulletin - Illinois. Natural History Survey Division (State of Illinois, Dept. of Registration and Education, Natural History Survey Division, 1957)

Bulletin international. Resumés des travaux présentés Classe des sciences mathématiques, naturelles et de la médecine - Ceská akademie ved a umení. (Académie des sciences, 1919)

Bulletin / New York State Museum - New York State Museum. (New York State Education Dept, 1900)

Bulletin - Nigerian Ornithologists' Society - Nigerian Ornithologists' Society. (Ahmadu Bello University Press, 1975)

Bulletin - Nigerian Ornithologists' Society - Nigerian Ornithologists' Society. (Ahmadu Bello University Press, 1976)

Bulletin of Carnegie Museum of Natural History - Carnegie Museum of Natural History (Carnegie Museum of Natural History, 1977)

Bulletin of Carnegie Museum of Natural History - Carnegie Museum of Natural History (Carnegie Museum of Natural History, 1978)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 1995)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 1996)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 1997)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2000)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2001)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2007)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2008)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2009)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2011)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2012)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2013)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2014)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2015)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2016)