Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2007)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2008)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2009)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2010)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2012)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2013)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2014)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2015)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1893)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1881)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1902)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1917)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1919)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1929)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1941)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1944)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1949)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1953)

Bulletin of the Philippine Museum - Philippine Museum. (Bureau of Public Printing, 1903)

Bulletin - Southern California Academy of Sciences. (The Academy, 1984)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2007)

Bulletin of the United States Fish Commission - United States Fish Commission. (The Commission, Govt. Print. Off, 1903)

Bulletin of the United States Geological and Geographical Survey of the Territories - Geological; Geographical Survey of the Territories (U.S.) (Government Printing Office, 1880)

Bulletin of the United States National Museum - United States National Museum (G.P.O, 1882)

Bulletin of the United States National Museum - United States National Museum (G.P.O, 1892)

Bulletin of the U.S. Department of Agriculture - United States. Department of Agriculture. (Supt. of Docs., G.P.O, 1915)

The Bulletin of zoological nomenclature - International Commission on Zoological Nomenclature (International Trust for Zoological Nomenclature, 1965)

Bulletin / Oriental Bird Club - Oriental Bird Club. (the Club, 1985)

Bulletin / Oriental Bird Club - Oriental Bird Club. (the Club, 1987)

Bulletin / Oriental Bird Club - Oriental Bird Club. (the Club, 1996)

Bulletin / Oriental Bird Club - Oriental Bird Club. (the Club, 1997)

Bulletin / Oriental Bird Club - Oriental Bird Club. (the Club, 2002)

Bulletin - Peabody Museum of Natural History. (The Museum, 1955)

Bulletin - Peabody Museum of Natural History. (The Museum, 1967)

Bulletin - Peabody Museum of Natural History. (The Museum, 1972)

Bulletins of American paleontology - Columbia University. College of Pharmacy. (Paleontological Research Institution [etc.], 1962)

Bullettino della Società malacologica italiana - Società italiana di malacologia. (La Società, 1879)

Bullettino della Società malacologica italiana - Società italiana di malacologia. (La Società, 1880)

Bullettino della Società malacologica italiana - Società italiana di malacologia. (La Società, 1881)

Bullettino della Società malacologica italiana - Società italiana di malacologia. (La Società, 1882)

Bullettino della Società malacologica italiana - Società italiana di malacologia. (La Società, 1883)

Bullettino della Società malacologica italiana - Società italiana di malacologia. (La Società, 1884)

Bullettino della Società malacologica italiana - Società italiana di malacologia. (La Società, 1885)

Bullettino della Società malacologica italiana - Società italiana di malacologia. (La Società, 1886)

C. Dumeril's, Doctors und Professors an der medicinischen Schule zu Paris, Analytische Zoologie - Duméril, C. (Constant), 1774 -1860 (Im Verlage des Landes-Industrie-Comptoirs, 1806)

Cage birds and bird world (F. Carl, 1907)

California birds - California Field Ornithologists. (California Field Ornithologists, 1970)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1900)

Camps and cruises of an ornithologist - Chapman, Frank M. (Frank Michler), 1864 -1945 (D. Appleton, 1908)

Camps and cruises of an ornithologist, by Frank M. Chapman ... - Chapman, Frank M. (Frank Michler), 1864 -1945 (D. Appleton and Company, 1908)

Camps in the Caribbees; the adventures of a naturalist in the Lesser Antilles - Ober, Frederick A. (Frederick Albion), 1849 -1913 (Lothrop, Lee & Shepard, 1907)

Camps in the Caribbees: the adventures of a naturalist in the Lesser Antilles - Ober, Frederick A. (Frederick Albion), 1849 -1913 (D. Douglas, 1880)

Capital natural de México - Sarukhan, Jose (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2008)

Carl von Linné, Vollständiges Natursystem - Linné, Carl von, 1707 -1778 (bey Gabriel Nicolas Raspe, 1773)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1908)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1925)

Caroli a Linné Species plantarum exhibentes plantas rite cognitas ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas - Willdenow, Karl Ludwig, 1765 -1812 (Impensis G.C. Nauk, 1799)

Caroli a Linné ... Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species; cum characteribus, differentiis, synonymis, locis - Gmelin, Johann Friedrich, 1748 -1804 (apud J.B. Delamolliere, 1789)

Caroli a Linné ... Systema naturae : per regna tria natura, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis - Linné, Carl von, 1707 -1778 (Impensis direct. Laurentii Salvii, 1766)

Caroli a Linné ... Systema naturae : per regna tria natura, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis - Linné, Carl von, 1707 -1778 (Impensis direct. Laurentii Salvii, 1767)

Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis - Gmelin, Johann Friedrich, 1748 -1804 (Impensis Georg. Emanuel. Beer, 1788)

Caroli Illigeri D. Acad. Reg. Scient. Berolinens. et Bavaricae Sod. Museo Zoologico Berolin. praefecti professoris extraord. Prodromus systematis mammalium et avium : additis terminis zoographicis utriusque classis, eorumque versione germanica - Illiger, Johann Karl Wilhelm, 1775 -1813 (Sumptibus C. Salfeld, 1811)

Caroli Illigeri ... Prodromus systematis mammalium et avium additis terminis zoographicis utriusque classis, eorumque versione germanica - Illiger, Johann Karl Wilhelm, 1775 -1813 (sumptibus C. Salfeld, 1811)

Caroli Linnæi Systema naturæ. Regnum animale - Linné, Carl von, 1707 -1778 (Sumptibus Guilielmi Engelmann, 1894)

Caroli a Linné. Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis - Gmelin, Johann Friedrich, 1748 -1804 (impensis Georg. Emanuel. Beer, 1788)

Catalogo das aves do Brasil e lista dos exemplares que as representam no Museu Paulista - Pinto, Oliveiro M. de Oliveira ([Museu Paulista], 1938)

Catálogo de la colección de aves del Museo Nacional (Museo Nacional, 1895)

Catalogo de las aves observadas en la isla de Cuba hasta octubre de 1850 - Lembeye, Juan.

Catalogo metodico degli uccelli europei - Bonaparte, Charles-Lucien, 1803 -1857 (J. Marsigli, 1842)

Catálogo sistemático de toda la fauna de Filipinas conocida hasta el presente - Elera, Casto de, 1852 - (Imprenta del colegio de Santo Tomás, 1895)

Catálogo sistemático de toda la fauna de Filipinas conocida hasta el presente - Elera, Casto de, 1852 - (Imprenta del colegio de Santo Tomás, 1896)

Catalogo sistematico degli uccelli di Borneo - Salvadori, Tommaso, 1835 -1923 (1874)

Catalogos da fauna brazileira - Museu Paulista (Typ. do Diario oficial, 1907)

Catalogue de la bibliothèque - Bohnensieg, G. C. W. (Georg Carl Wilhelm), 1828 - (Héritiers Loosjes, 1885)

Catalogue des oiseaux d'Europe ; ou énumération des espèces et races d'oiseaux dont la présence, soit habituelle, soit fortuite, a été dument constatée dans les limites géographiques de l'Europe - Hamonville, J. C. L. T. Baron, (Jean Charles Louis Tardif d'), 1830 -1899 (J.B. Baillière, 1876)