Revista de la Academia Canaria de Ciencias - Academia Canaria de Ciencias. (Academia Canaria de Ciencias, 2001)

Revista de la Academia Canaria de Ciencias - Academia Canaria de Ciencias. (Academia Canaria de Ciencias, 2002)

Revista de la Academia Canaria de Ciencias - Academia Canaria de Ciencias. (Academia Canaria de Ciencias, 2012)

Revista do Museu Paulista - Museu Paulista (O Museu, 1938)

Revue critique de l'Ornithologie Européenne de M. De Selys Longchamps - Bonaparte, Charles-Lucien, 1803 -1857 (1850)

Revue critique des oiseaux d'Europe - Schlegel, H. (Hermann), 1804 -1884 (A. Arnz et comp.; [etc., etc.], 1844)

Revue des sciences naturelles de l'ouest - Institut international de bibliographie scientifique. (Revue des sciences naturelles de l'ouest, 1893)

Revue des travaux scientifiques - France. Ministère de l'Instruction publique (Imprimerie nationale, 1892)

Revue et magasin de zoologie pure et appliquée - Société Cuvierienne. (Bureau de la Revue et Magasin de Zoologie, 1851)

Revue et magasin de zoologie pure et appliquée - Société Cuvierienne. (Bureau de la Revue et Magasin de Zoologie, 1867)

Revue française d'ornithologie - Société ornithologique et mammalogique de France. (L. Denise, 1911)

Revue française d'ornithologie - Société ornithologique et mammalogique de France. (L. Denise, 1909)

Revue française d'ornithologie - Société ornithologique et mammalogique de France. (L. Denise, 1915)

Revue française d'ornithologie - Société ornithologique et mammalogique de France. (L. Denise, 1919)

Revue générale des sciences pures et appliquées ([s.n.], 1922)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1865)

Revue scientifique du Bourbonnais et du centre de la France - Olivier, Ernest, 1844 -1914 (Impr. É. Auclaire, 1895)

Revue scientifique du Bourbonnais et du centre de la France - Olivier, Ernest, 1844 -1914 (Impr. É. Auclaire, 1908)

La Revue scientifique du Limousin - Le Gendre, Charles. (Impr.-Librairie Ve. H. Ducourtieux, 1920)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1946)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1989)

Rhea - Thienemann, Friedrich August Ludwig, 1793 -1858 (F.A. Brockhaus, 1846)

Rough notes on the Birds observed during twenty-five years shooting and collecting in the British Islands - Booth, Edward Thomas, 1840 -1890 (1881)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1980)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1981)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1982)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1983)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1984)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1987)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1988)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1989)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1993)

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

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1996)

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, 1999)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2002)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2003)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2004)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2005)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2007)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2008)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2010)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2012)

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

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2014)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2015)

Schlesiens Wirbelthier-Fauna : ein systematischer Ueberblick der in dieser Provinz vorkommenden Säugthiere, Vögel, Amphibien und Fische ; mit Rücksicht auf den allgemeinen Character des Landes, so wie auf das locale und quantitative Vorkommen seiner Thiere, namentlich mit Angabe ihres Austeigens auf Berghöhen und ihrer wichtigsten Abänderungen - Gloger, Constantin Wilhelm Lambert, 1803 -1859 (Druck und Verlag von Grass, Barth und Comp, 1833)

Schriften der Naturforschenden Gesellschaft in Danzig - Naturforschende Gesellschaft in Danzig. (Auf Kosten der Naturforschenden Gesellschaft, 1899)

Schriften der Naturforschenden Gesellschaft in Danzig - Naturforschende Gesellschaft in Danzig. (Auf Kosten der Naturforschenden Gesellschaft, 1898)

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1907)

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1917)

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

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, 1984)

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, 1986)

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, 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, 1991)

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, 2014)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 2015)

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, 2020)

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

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1978)

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

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1980)

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, 1983)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1984)

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, 1987)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1988)

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, 1992)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1994)

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

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1996)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1997)

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, 2000)

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, 1962)

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, 1974)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1976)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1980)

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

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1984)

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

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1988)