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 (2014)

British birds (2015)

British birds (2016)

British birds (1994)

British birds - Jardine, William, 1800 -1874 (W.H. Lizars [etc.], 1843)

British birds & their eggs : with a new method of identification - Boraston, John Maclair. (W. & R. Chambers, 1909)

British birds and their eggs : with a new method of identification - Boraston, John Maclair. (W. & R. Chambers, 1909)

British birds' eggs and nests, popularly described - Atkinson, J. C. (John Christopher), 1814 -1900 (G. Routledge and Sons, 1867)

British birds in their haunts - Johns, C. A. (Charles Alexander), 1811 -1874 (Society for Promoting Christian Knowledge, 1862)

British birds in their haunts - Johns, C. A. (Charles Alexander), 1811 -1874 (G. Routledge & Sons, limited, 1909)

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

British birds in their haunts - Johns, C. A. (Charles Alexander), 1811 -1874 (Society for Promoting Christian Knowledge, 1867)

British birds in their haunts - Johns, C. A. (Charles Alexander), 1811 -1874 (G. Routledge, 1922)

British birds: key list - Irby, L. Howard (Leonard Howard Lloyd), 1836 -1905 (R. H. Porter, 1892)

British birds' nests, how, where, and when to find and identify them - Kearton, Richard, 1862 -1928 (Cassell and Company, Limited, 1908)

British birds with their nests and eggs - Frohawk, Frederick William, 1861 -1946 (Brumby & Clarke, 1896)

British birds - Thorburn, Archibald, 1860 -1935 (Longmans, Green, 1915)

British Central Africa : an attempt to give some account of a portion of the territories under British influence, north of the Zambesi - Johnston, Harry, 1858 -1927 (Arnold, 1897)

British Central Africa; an attempt to give some account of a portion of the territories under British influence north of the Zambesi - Johnston, Harry, 1858 -1927 (Methuen & co, 1906)

British journal of entomology and natural history - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1995)

British journal of entomology and natural history - British Entomological; Natural History Society. (British Entomological and Natural History Society, 2003)

British nesting birds : a complete record of every species which nests in the British Isles - Westell, W. Percival (William Percival), 1874 -1943 (J.M. Dent, 1910)

British oology : being illustrations of the eggs of British birds, with figures of each species, as far as practicable, drawn and coloured from nature : accompanied by descriptions of the materials and situation of their nests, number of eggs - Hewitson, William C. (William Chapman), 1806 -1878 (Published for the author by C. Empson, 1833)

British Ornithologists' Club occasional publications - British Ornithologists' Club. (British Ornithologists' Club, 1997)

Brotéria : revista de sciencias naturaes do Collegio de S. Fiel - Collégio de S. Fiel (La Bécarre, 1904)

Brothers EIS area in Central Oregon : wildlife habitat interrelationships : working draft - United States. Bureau of Land Management. Oregon State Office. (Bureau of Land Management, Oregon State Office, 1982)

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, 2005)

Buceros : ENVIS newsletter : avian ecology and inland wetlands - Bombay Natural History Society. (Bombay Natural History Society, 2010)

Buceros : ENVIS newsletter : avian ecology and inland wetlands - Bombay Natural History Society. (Bombay Natural History Society, 2015)

Buceros : ENVIS newsletter : avian ecology and inland wetlands - Bombay Natural History Society. (Bombay Natural History Society, 2017)

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)

Buletinul Societății de Șciințe din Bucureșci, România = Bulletin de la Société des sciences de Bucarest, Roumanie - Societatea de Științe din București. (Societatea, 1892)

Bulletin - East Africa Natural History Society. (East Africa Natural History Society, 1971)

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

Bulletin - East Africa Natural History Society. (East Africa Natural History Society, 1975)

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 - National Institutes of Health (U.S.) (U.S. Govt. Print. Off, 1907)

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

Bulletin - Société d'Étude des Sciences Naturelles de Béziers. (1896)

Bulletin - Société des amis des sciences naturelles de Rouen. (1901)

Bulletin - Société des amis des sciences naturelles de Rouen. (1904)

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, 1927)

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

Bulletin - United States National Museum (G.P.O, 1937)

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