British birds (1988)

British birds (1989)

British birds (1990)

British birds (1991)

British birds (1994)

British birds (1995)

British birds (1996)

British birds (1997)

British birds (1999)

British birds (2001)

British birds (2002)

British birds (2003)

British birds (2004)

British birds (2005)

British birds (2006)

British birds (2008)

British birds (2009)

British birds (2010)

British birds (2011)

British birds (2012)

British birds (2013)

British birds (2014)

British birds (2015)

British birds (2016)

British birds : descriptions of all the commoner species, their nests, and eggs - Kirkman, F. B. (Frederick B.), 1869 -1945 (T.C. & E.C. Jack, 1913)

British birds : descriptions of all the commoner species, their nests and eggs - Kirkman, F. B. (Frederick B.), 1869 -1945 (T.C. & E. Jack, 1900)

The British nature book; a complete handbook and guide to British nature study, embracing the mammals, birds, reptiles, fish, insects, plants, etc., in the United Kingdom - Sedgwick, Sidney Newman. (T.C. & E.C. Jack, Ltd, 1922)

Buceros : ENVIS newsletter : avian ecology and inland wetlands - Bombay Natural History Society. (Bombay Natural History Society, 1997)

Buceros : ENVIS newsletter : avian ecology and inland wetlands - Bombay Natural History Society. (Bombay Natural History Society, 1998)

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, 2003)

Buceros : ENVIS newsletter : avian ecology and inland wetlands - Bombay Natural History Society. (Bombay Natural History Society, 2007)

Bulletin - East Africa Natural History Society. (East Africa Natural History Society, 1973)

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

Bulletin - Pacific Seabird Group. (The Group, 1977)

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

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

Bulletin - Pacific Seabird Group. (The Group, 1981)

Bulletin - Pacific Seabird Group. (The Group, 1983)

Bulletin - National Museum of Canada. (National Museum of Canada, 1925)

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

Bulletin - United States National Museum (G.P.O, 1917)

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

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)

Bulletin - United States National Museum (G.P.O, 1932)

Tasmanian Field Naturalists' Club Bulletin - Tasmanian Field Naturalists' Club (Tasmanian Field Naturalists' Club, 1992)

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

Bulletin - United States National Museum (G.P.O, 1967)

Bulletin - National Museum of Canada. (National Museum of Canada, 1960)

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, 1908)

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

Bulletin de la Société philomathique de Paris - Société Philomathique de Paris. (Société philomathique de Paris, 1911)

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

Bulletin de la Société fribourgeoise des sciences naturelles : compte-rendu - Société fribourgeoise des sciences naturelles (Imprimerie Ant. Henseler, 1916)

Bulletin du Muséum d'histoire naturelle - Muséum national d'histoire naturelle (France) (Impr. nationale, 1907)

Bulletin du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Imprimerie nationale, 1907)

Bulletin du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Imprimerie nationale, 1909)

Bulletin du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Imprimerie nationale, 1968)

Bulletin du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Imprimerie nationale, 1969)

Bulletin from the laboratories of natural history of the State University of Iowa - University of Iowa. (The University, 1924)

Bulletin from the laboratories of natural history of the State University of Iowa - University of Iowa. (The University, 1922)

Bulletin, Gulf Biologic Station - Gulf Biologic Station (La.) (Louisiana State Board of Agriculture and Immigration, 1904)

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, 1978)

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, 1998)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 1999)

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, 2002)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2003)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2004)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2005)

Bulletin of the African Bird Club - African Bird Club. (African Bird Club, 2006)