Balkanvögel : ein ornithologisches Tagebuch - Gengler, Josef, 1863 -1931 (H.A. Pierer, 1920)

Beeton's Dictionary of natural history : a comprehensive cyclopaedia of the animal kingdom : containing upwards of two thousand complete and distinct articles - Beeton, Samuel Orchart, 1831 -1877 (Ward, Lock and Co, 1884)

Beiträge zur Vogelfauna der Mark Brandenburg. Materialen zu einer Ornithologie der norddeutschen Tiefebene auf Grund eigener Beobachtungen und darauf gegründeter Studien - Schalow, Herman, 1852 -1925 (Deutsche ornithologische Gesellschaft, 1919)

Beitraege zur Ornithologie Griechenlands - Mühle, Heinrich Karl Leopold, Graf von der, 1810 -1855 (E. Fleischer, 1844)

Beitrag zur fauna Centralpolynesiens. Ornithologie der Viti-, Samoa- und Tonga-inseln - Hartlaub, Gustav, 1814 -1900 (H. W. Schmidt, 1867)

Beitrag zur Osteologie des Vogelschwanzes : Inaugural-dissertation der philosophischen Fakultät der Universität Bern zur Erlangung der Doctorwürde - Oort, E. D. van (Eduard Daniël),‏ ‎ 1876 -1933 (E.J. Brill, 1904)

Beiträge zur Naturgeschichte von Brasilien - Wied, Maximilian, Prinz von, 1782 -1867 (Im Verlage des Landes-Industrie-Comptoirs, 1830)

Berattelse om Framstegen i Vertebrerade Djurens Naturalhistoria och Ethnografien - Kungl. Svenska vetenskapsakademien. (1845)

Berge's Complete natural history of the animal, mineral, and vegetable kingdoms - Crawford, Richard Frederick (Dean, 1890)

Bergey's manual of determinative bacteriology - American Society for Microbiology. (Biotech, 1948)

Bericht des Naturhistorischen Vereins in Augsburg - Naturhistorischer Verein in Augsburg. (Der Verein, 1864)

Bericht des Naturwissenschaftlichen Vereins für Schwaben und Neuburg (a.V.) in Augsburg - Naturwissenschaftlicher Verein für Schwaben und Neuburg. (Die Verein, 1890)

Bericht über die Leistungen in der Naturgeschichte der Vögel - Pelzeln, August von, 1825 -1891 (1847)

Bericht über die Leistungen in der Naturgeschichte der Vögel - Pelzeln, August von, 1825 -1891 (1882)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1896)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1898)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1906)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1911)

Bibliography and catalogue of the fossil vertebrata of North America - Hay, Oliver Perry, 1846 -1930 (Govt. Print. Off, 1902)

A bibliography of birds : with special reference to anatomy, behavior, biochemistry. Part 3, Subject index - Field Museum of Natural History. (Field Museum of Natural History, 1946)

A bibliography of birds : with special reference to anatomy, behavior, biochemistry. Part 4, Finding index - Field Museum of Natural History. (Field Museum of Natural History, 1959)

A bibliography of birds : with special reference to anatomy, behavior, biochemistry. Part 2, Author catalogue K to Z - Field Museum of Natural History. (Field Museum of Natural History, 1939)

Bibliotheca zoologica [I] Verzeichniss der schriften ©ơber zoologie, welche in den periodischen werken enthalten und vom jahre 1846-1860 selbst©Þndig erschienen sind. Mit einschluss der allgemein-naturgeschichtlichen, periodischen und paleontologischen schriften - Carus, Julius Victor, 1823 -1903 (W. Engelmann, 1861)

Bibliotheca zoologica [I] Verzeichniss der Schriften über zoologie, welche in den Periodischen werken enthalten und vom Jahre 1846-1860 selbständig erschienen Sind - Carus, Julius Victor, 1823 -1903 (W. Engelmann, 1861)

Bibliotheca zoologica II. verzeichness der schriften über zoologie welche in den periodischen werken enthalten und vom jahre 1861-1880 selbständig erschienen sind, mit einschluss der allgemein-naturgeschichtlichen, periodischen und paleontologischen schriften - Carus, Julius Victor, 1823 -1903 (Wilhelm Engelmann, 1887)

Bibliothèque britannique : ou Histoire des ouvrages des savans de la Grande-Bretagne (P. de Hondt, 1733)

Bidrag till kännedom av Finlands natur och folk / utgivna av Finska Vetenskaps-Societeten - Suomen Tiedeseura (Finska vetenskaps-societeten, 1914)

Bilder-Atlas zum Conversations-Lexicon. Ikonographische Encyklopädie der Wissenschaften und Künste - Heck, J. G. (Johann Georg), 1857 (F.A. Brockhaus, 1849)

Binomial and trinomial index to The auk, 1884-1940, also including the Nuttall bulletin, 1876-1883, and the A.O.U. check-list of North American birds (all seven editions) - Pollock, Andrew W. ([Andrew W. Pollock III], 2015)

Biologia centrali-americana: Aves - Godman, Frederick Du Cane, 1834 -1919 (R.H. Porter], 1897)

Biologia Centrali-Americana :zoology, botany and archaeology - Godman, Frederick Du Cane, 1834 -1919 (Published for the editors by R. H. Porter], 1897)

Biological investigation in Alaska and Yukon territory : I. East Central Alaska. II. The Ogilvie range, Yukon. III. The Macmillan River, Yukon - Osgood, Wilfred Hudson, 1875 -1947 (Government Printing Office, 1909)

A biological investigation of the Athabaska-Mackenzie region - Merriam, C. Hart (Clinton Hart), 1855 -1942 (Govt. print. off, 1908)

A biological reconnaissance of the base of the Alaska peninsula - Osgood, Wilfred Hudson, 1875 -1947 (Government Printing Office, 1904)

Biologisches Centralblatt - Rosenthal, I. (Isidor), 1836 -1915 (Verlag von Georg Thieme, 1908)

The biologist's handbook of pronunciations - Jaeger, Edmund C. (Edmund Carroll) 1887 -1983 (Thomas, 1960)

A bird calendar for northern India - Dewar, Douglas, 1875 -1957 (W. Thacker & co.; [etc., etc.], 1916)

Bird-hunting through wild Europe - Lodge, R. B. (Robert Culley, 1908)

Bird notes - Foreign Bird Club. (Foreign Bird Club, 1910)

Bird notes - Foreign Bird Club. (Foreign Bird Club, 1912)

Bird notes - Foreign Bird Club. (Foreign Bird Club, 1914)

Bird notes - Foreign Bird Club. (Foreign Bird Club, 1919)

Bird notes - Foreign Bird Club. (Foreign Bird Club, 1920)

Bird notes - Foreign Bird Club. (Foreign Bird Club, 1921)

Bird studies; an account of the land birds of eastern North America - Scott, William Earl Dodge, 1852 -1910 (G. P. Putnam's Sons, 1898)

Birds and mammals of the Skeena River region of northern British Columbia - Swarth, Harry S. (Harry Schelwald), 1878 -1935 (University of California Press, 1924)

Birds and mammals of the Stikine River region of northern British Columbia and southeastern Alaska - Swarth, Harry S. (Harry Schelwald), 1878 -1935 (University of California Press, 1922)

Birds and nature (A.W. Mumford, Publisher, 1900)

Birds and nature (A.W. Mumford, Publisher, 1904)

Birds and nature in natural colors : being a scientific and popular treatise on four hundred birds of the United States and Canada (A.W. Mumford, Publisher, 1913)

Birds at the zoo - Berridge, W. S. (Walter Sydney) (Gowans & Gray, 1907)

Birds - Baird, Spencer Fullerton, 1823 -1887 (1858)

Birds. Collected excerpts from v. 10 of Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (1900)

Birds in Kansas - Thompson, Max C. (University of Kansas, Museum of Natural History, 1989)

Birds of America - Pearson, T. Gilbert (Thomas Gilbert), 1873 -1943 (The University Society, 1923)

The birds of America : from drawings made in the United States and their territories - Audubon, John James, 1785 -1851 (J.B. Chevalier, 1844)

The birds of America, from drawings made in the United States and their territories - Audubon, John James, 1785 -1851 (G.R. Lockwood, 1871)

Birds of Arkansas - Howell, Arthur H. (Arthur Holmes), 1872 -1940 (U.S. Dept. of Agriculture, Biological Survey, 1911)

The birds of British Guiana : based on the collection of Frederick Vavasour McConnell - Chubb, Charles, 1851 -1924 (Bernard Quaritch, 1916)

Birds of Buzzard's Roost, one for each week, and other essays - Woollen, William Watson, 1838 -1921 (Scott-Miller Company, 1907)

The birds of California : a complete, scientific and popular account of the 580 species and subspecies of birds found in the state - Finley, William L. (William Lovell), 1876 -1953 (South Moulton Company, 1923)

The birds of California : a complete, scientific and popular account of the 580 species and subspecies of birds found in the state - Brooks, Allan 1869 -1946 (South Moulton, 1923)

The birds of California; a complete, scientific and popular account of the 580 species and subspecies of birds found in the state - Finley, William L. (William Lovell), 1876 -1953 (South Moulton, 1923)

Birds of California : an introduction to more than three hundred common birds of the state and adjacent islands, with a supplementary list of rare migrants, accidental visitants, and hypothetical subspecies - Horsfall, R. Bruce 1869 -1948 (A.C. McClurg, 1912)

Birds of California; an introduction to more than three hundred common birds of the state and adjacent islands, with a supplementary list of rare migrants, accidental visitants, and hypothetical subspecies - Wheelock, Irene Grosvenor (A.C. McClurg, 1916)

Birds of California; an introduction to more than three hundred common birds of the state and adjacent islands, with a supplementary list of rare migrants, accidental visitants, and hypothetical subspecies - Wheelock, Irene Grosvenor (A. C. McClurg, 1904)

Birds of California; an introduction to more than three hundred common birds of the state and adjacent islands - Wheelock, Irene Grosvenor (A.C. McClurg & Co, 1912)

The birds of Chile - Hellmayr, Carl Eduard, 1878 -1944 (Field Museum of Natural History, 1932)