Revue zoologique africaine (Hayez, 1923)

The Riverside natural history - Kingsley, J. S. (John Sterling), 1854 -1929 (Houghton, Mifflin and company, 1888)

Rivista italiana di ornitologia - Museo civico di storia naturale di Milano. (Società italiana di scienze naturali, 1913)

Rivista italiana di ornitologia - Museo civico di storia naturale di Milano. (Società italiana di scienze naturali, 1918)

The royal natural history - Lydekker, Richard, 1849 -1915 (Frederick Warne & Co, 1895)

The royal natural history - Lydekker, Richard, 1849 -1915 (F. Warne, 1895)

The royal natural history - Lydekker, Richard, 1849 -1915 (F. Warne, 1893)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1986)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1994)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1997)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1998)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2006)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2013)

Scenes and tales of country life with recollections of natural history - Jesse, Edward, 1780 -1868 (J. Murray, 1844)

Scientific results of the Zoological Expedition to British East Africa and Uganda made by Prof. V. Dogiel and I. Sokolow in the year 1914 - Dogel, V. A. (Valentin Aleksandrovich), 1882 -1955 (1914)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1977)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1978)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1980)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1981)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1989)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1992)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 2016)

Scopus Special Supplement. Special Supplement - East Africa Natural History Society.

Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (K.-K. Hof-und Staatsdruckerei in Commission bei Karl Gerold's Sohn, 1856)

Sketch of the evolution of our native fruits - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1898)

Sketch of the forestry of West Africa with particular reference to its present principal commercial products - Shelley, G. E. (George Ernest), 1840 -1910 (S. Low, Marston, Searle, & Rivington, 1887)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1948)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1964)

Some account of the fauna and flora of Sinai, Petra, and Wâdy 'Arabah - Hart, Henry Chichester, 1847 -1908 (Pub. for the Committee of the Palestine exploration fund by A. P. Watt, 1891)

Some account of the fauna and flora of Sinai, Petra, and WÃ¢dy 'Arabah - Hart, Henry Chichester, 1847 -1908 (Pub. for the Committee of the Palestine Exploration Fund by A.P. Watt, 1891)

Some Indian friends and acquaintances; a study of the ways of birds and other animals frequenting Indian streets and gardens - Cunningham, D. D. (David Douglas) (J. Murray, 1903)

Some useful Australian birds - New South Wales. Dept. of Agriculture. (W.A. Gullick, Govt. Printer, 1921)

South African journal of natural history - South African Biological Society. (South African Biological Society, 1918)

The South Australian Naturalist - Field Naturalists' Society of South Australia (The Society, 1945)

South Australian ornithologist - South Australian Ornithological Association. (South Australian Ornithological Association, 1914)

South Pacific birds - Du Pont, John E. (John Eleuthère), 1938 -2010 (Delaware Museum of Natural History, 1976)

Spolia zeylanica - Colombo Museum (Colombo Museum, 1914)

Spolia zeylanica - Colombo Museum (Colombo Museum, 1918)

The story of the rear column of the Emin Pasha relief expedition - Jameson, James S. (James Sligo), 1856 -1888 (Rose Pub. Co, 1891)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1872)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1874)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1875)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1876)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1877)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1878)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1879)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1880)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1887)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1873)

The structure and classification of birds - Beddard, Frank E. (Frank Evers), 1858 -1925 (Longmans, Green, and co, 1898)

Stuttgarter Beiträge zur Naturkunde - Staatliches Museum für Naturkunde in Stuttgart (Das Museum, 1968)

Supplement to the 'Birds of New Zealand' - Buller, Walter Lawry, Sir, 1838 -1906 (The author, 1905)

The survey of western Palestine. The fauna and flora of Palestine - Tristram, H. B. (Henry Baker), 1822 -1906 (The Committee of the Palestine Exploration Fund, 1884)

Synopsis der mitteleuropaïschen flora - Graebner, Paul, 1871 -1933 (W. Engelmann, 1896)

A synopsis of the birds of Australia, and the adjacent islands - Gould, John 1804 -1881 (Published by the author, 1837)

Synoptical flora of North America - Gray, Asa, 1810 -1888 (Ivison, Blakeman, Taylor, and Co. [etc.,etc.], 1884)

System der Ornithologie Westafrica's - Hartlaub, Gustav, 1814 -1900 (C. Schünemann, 1857)

Systema avium Australasianarum = A systematic list of the birds of the Australasian region - American Ornithologists' Union. (British Ornithologists' Union, 1927)