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 - 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: a handbook of British oölogy - Butler, Arthur G. (Arthur Gardiner), 1844 -1925 (Janson, 1886)

British birds' eggs and nests, popularly described - Atkinson, J. C. (John Christopher), 1814 -1900 (s.n, 1861)

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 (G. Routledge & Sons, limited, 1909)

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 (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 : key list - Irby, L. Howard (Leonard Howard Lloyd), 1836 -1905 (R.H. Porter, 1888)

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 Graham land expedition, 1934-37. Scientific reports. v. 1 - British Museum (Natural History) (Printed by order of the Trustees of the British museum, 1940)

British journal of entomology and natural history - British Entomological; Natural History Society. (British Entomological and Natural History Society, 2005)

British naturalist (1893)

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 sea birds ... - Dixon, Charles, 1858 -1926 (Bliss, Sands and Foster, 1896)

Brockhaus' Konversations-Lexikon (F.A. Brockhaus, 1895)

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, 2003)

Buletinul Societății de Șciințe din Bucureșci, România = Bulletin de la Société des sciences de Bucarest, Roumanie - Societatea de Științe din București. (Societatea, 1911)

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

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

Bulletin - Pacific Seabird Group. (The Group, 1976)

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

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

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

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

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

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

Bulletin - Pacific Seabird Group. (The Group, 1986)

Bulletin - Pacific Seabird Group. (The Group, 1987)

Bulletin - Pacific Seabird Group. (The Group, 1988)

Bulletin - Pacific Seabird Group. (The Group, 1989)

Bulletin - Société des amis des sciences naturelles de Rouen. (1903)

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

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

Bulletin - National Museum of Canada. (National Museum of Canada, 1928)

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

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

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

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, 1927)

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

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

Bulletin - National Museum of Canada. (National Museum of Canada, 1940)

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

Bulletin - Essex County Ornithological Club of Massachusetts. (1937)

Bulletin - National Museum of Canada. (National Museum of Canada, 1950)

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

Bulletin - National Museum of Canada. (National Museum of Canada, 1963)

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

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 d'écologie - Société Française D'Écologie (Masson, 1973)

Bulletin d'écologie - Société Française D'Écologie (Masson, 1978)