Resource management report - Ontario. Fish; Wildlife Branch.

A review of recent attempts to classify birds; an address delivered before the Second international ornithological congress on the 18th of May, 1891 - Sharpe, Richard Bowdler, 1847 -1909 (Pub. at the office of the congress, 1891)

A review of the Bathornithidae (Aves, Gruiformes), with remarks on the relationships of the suborder Cariamae - Cracraft, Joel (American Museum of Natural History, 1968)

Revista chilena de historia natural - Museo de Historia Natural de Valparaíso (Valparaíso, Chile) (Litografia e Impr. Industrial (F. Peters), 1921)

Revista del Museo de La Plata - Universidad Nacional de La Plata. (Talleres del Museo de La Plata, 1904)

Revista do Museu Paulista - Museu Paulista (Museu Paulista, 1920)

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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, 1909)

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Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1933)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1935)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1939)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1940)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1941)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1955)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1959)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1963)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1967)

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

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1991)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1995)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 2010)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 2020)

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

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

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

Schreibers kleiner Atlas der einheimischen Vögel (J.F. Schreiber)

Science series / Los Angeles County Museum - Campbell, Kenneth E. Jr. (Kenneth Eugene), 1943 - (Natural History Museum of Los Angeles County, 1942)

Science series / Los Angeles County Museum - Campbell, Kenneth E. Jr. (Kenneth Eugene), 1943 - (Natural History Museum of Los Angeles County, 1949)

Science series / Los Angeles County Museum - Campbell, Kenneth E. Jr. (Kenneth Eugene), 1943 - (Natural History Museum of Los Angeles County, 1951)

Science series / Los Angeles County Museum - Campbell, Kenneth E. Jr. (Kenneth Eugene), 1943 - (Natural History Museum of Los Angeles County, 2015)

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Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 2009)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 2012)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 2013)

The Scottish naturalist (T. Buncle & Co. [etc.], 1931)

The Scottish naturalist (T. Buncle & Co. [etc.], 1953)

The Scottish naturalist (T. Buncle & Co. [etc.], 1956)

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Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1934)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1940)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1951)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1952)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1956)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1961)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1965)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1968)

Smithsonian scientific series - Smithsonian Institution (Smithsonian Institution Series, Inc, 1930)

Smithsonian scientific series - Smithsonian Institution (Smithsonian Institution Series, Inc, 1931)

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Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1968)

Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1969)

Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1971)

Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1975)

Smithsonian year : annual report of the Smithsonian Institution for the year ended Sept. 30 ... - Smithsonian Institution (For sale by the Supt. of Docs., U.S. G.P.O, 1979)

Smithsonian year : annual report of the Smithsonian Institution for the year ended Sept. 30 ... - Smithsonian Institution (For sale by the Supt. of Docs., U.S. G.P.O, 1981)

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Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1969)