Schweizerische Blätter für Ornithologie : Geflügel-Tauben- und Kaninchenzucht - Schweizerischer Geflügelzucht-Verein. (Schweizerischer Geflügelzucht-Verein, 1907)

Schweizerische Blätter für Ornithologie : Geflügel-Tauben- und Kaninchenzucht - Schweizerischer Geflügelzucht-Verein. (Schweizerischer Geflügelzucht-Verein, 1910)

Schweizerische Blätter für Ornithologie : Geflügel-Tauben- und Kaninchenzucht - Schweizerischer Geflügelzucht-Verein. (Schweizerischer Geflügelzucht-Verein, 1913)

Scientific results of the Second Yarkand Mission : based upon the collections and notes of the late Ferdinand Stoliczka - Stoliczka, Ferdinand, 1838 -1874 (Printed by the Superintendent of Government Printing, India, 1891)

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, 1982)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1983)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1984)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1986)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1985)

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, 1987)

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, 1990)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1991)

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, 1993)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1994)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1995)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1998)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 2005)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 2010)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 2014)

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

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 2017)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 2020)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 2021)

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

Scopus Special Supplement. Special Supplement - East Africa Natural History Society. (2014)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1979)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1981)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1982)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1985)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1986)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1989)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1990)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1991)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1992)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1993)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1995)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1998)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1999)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 2001)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1959)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1960)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1958)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1966)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1968)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1970)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1972)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1982)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1986)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1993)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 2001)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 2011)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 2014)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 2015)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 2023)

Scottish Naturalist - Scottish Natural History Library. (Scottish Natural History Library, 1984)

The Scottish naturalist (T. Buncle & Co. [etc.], 1916)

The Scottish naturalist (T. Buncle & Co. [etc.], 1920)

Scottish Naturalist - Scottish Natural History Library. (Scottish Natural History Library, 1994)

The Scottish naturalist (T. Buncle & Co. [etc.], 1933)

The Scottish naturalist (T. Buncle & Co. [etc.], 1952)

Scottish Naturalist - Scottish Natural History Library. (Scottish Natural History Library, 2001)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1960)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1961)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1964)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1966)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1967)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1975)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1978)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1979)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1980)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1981)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1982)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1983)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1984)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1985)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1987)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1988)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1990)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1992)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1993)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1995)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1998)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1999)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 2002)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 2005)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 2012)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 2017)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 2019)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 2022)

A serological and ectoparasite survey of migratory birds in northeast Africa; final report - Watson, George E. (George Elder),‏ ‎ 1931 - (Dept. of Vertebrate Zoology, Smithsonian Institution, 1972)

sheng wu duo yang xing yi cong - Zhongguo ke xue yuan. Sheng wu duo yang xing wei yuan hui (ke xue chu ban she, 1997)

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, 1858)

Sitzungsberichte der königl. böhmischen Gesellschaft der Wissenschaften in Prag - Königlich-Böhmische Gesellschaft der Wissenschaften (Königlich-böhmische Gesellschaft der Wissenschaften, 1859)

Skandinaviens fugle, med særligt hensyn til Danmark og de nordlige bilande - Grönvold, Henrik, 1858 -1940 (L.A. Jørgensen, 1875)

Sketch-book of British birds - Sharpe, Richard Bowdler, 1847 -1909 (Society for Promoting Christian Knowledge, 1898)

A sketch of Madeira : containing information for the traveller, or invalid visitor - Harcourt, Edward Vernon, 1825 -1891 (John Murray, 1851)

Sketches of South African bird-life - Haagner, Alwin (Alwin Karl), 1880 -1962 (T. M. Miller, 1914)

Sketches of South African bird-life - Haagner, Alwin (Alwin Karl), 1880 -1962 (R. H. Porter; [etc., etc.], 1908)

Sketches of South African bird-life - Haagner, Alwin (Alwin Karl), 1880 -1962 (T.M. Miller)

Skizzirte Entwickelungs-Geschichte und natürliches System der europäischen Thierwelt : Erster Theil welcher die Vogelsäugethiere und Vögel nebst Andeutung der Entstehung der letzteren aus Amphibien enthält - Kaup, J. J. (Johann Jacob), 1803 -1873 (In commission bei Carl Wilhelm Leske, 1829)

Skrifter utgit av Videnskapsselskapet i Kristiania. I, Matematisk-naturvidenskabelig klasse - Christiania videnskabs-selskab. I–Math.-naturv. klasse. (I Kommission hos J. Dybwad, 1914)