The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1901)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1902)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1903)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1904)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1905)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1906)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1907)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1908)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1909)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1915)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1911)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1914)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1919)

An authentic history of Lancaster County, in the state of Pennsylvania - Mombert, J. I. (Jacob Isidor), 1829 -1913 (J.E. Barr & Co, 1869)

An authentic history of Lancaster County : in the state of Pennsylvania - Mombert, J. I. (Jacob Isidor), 1829 -1913 (J.E. Barr & Co, 1869)

Autumn land-bird migration on the barrier islands of northeastern North Carolina - North Carolina Biological Survey. (North Carolina Biological Survey, 1986)

Aves de México : lista actualizada de especies y nombres comunes 2015 - Gómez de Silva, Héctor (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2015)

As aves do Estado de S. Paulo - Ihering, H. von (Hermann), 1850 -1930 (Typ. a vapor de Hennies irmãos, 1898)

Aves nuevas del Paraguay. Continuación á Azara - Bertoni, Arnaldo de Winkelried, 1878 -1973 (Talleres nacionales de H. Kraus, 1901)

Avian medicine : principles and application - Harrison, Greg J. (Wingers Pub, 1994)

Avian responses to management of riparian habitat in the Prineville District, Bureau of Land Management, Central Oregon, draft : report of 1999 and 2000 field activities - United States. Bureau of Land Management. Oregon State Office. (Wildlife Conservation Society, North American Program, 2000)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1906)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1917)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1922)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1936)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1939)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1981)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1987)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1990)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1997)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1998)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 2000)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 2002)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 2006)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 2011)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 2012)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 2013)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 2014)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 2017)

Avifauna associated with early growth vegetation on clearcuts in the Oregon Coast Ranges - Pacific Northwest Forest; Range Experiment Station (Portland, Or.) (Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1983)

The avifauna of Louisiana, with an annotated list of the birds of the State - Beyer, George E. (George Eugene), 1861 -1926 (1900)

Avifauna of the Cerro de la Muerte region, Costa Rica - Wolf, Larry L. (American Museum of Natural History, 1976)

Avium species novae quas in itinere per Brasiliam annis MDCCCXVII-MDCCCXX jussu et auspiciis Maximiliani Josephi I. Bavariae Regis - Spix, Johann Baptist von, 1781 -1826 (Typis. Franc. Seraph. Hubschmann, 1840)

The Bahama Islands - Geographical Society of Baltimore. (The Macmillan company, 1905)

The Bahama Islands - Shattuck, George Burbank, 1869 -1934 (The Macmillan company, 1905)

The Bahama Islands - Geographical Society of Baltimore. (Johns Hopkins Press, 1905)

The Bahama Islands - Geographical Society of Baltimore. (Macmillan, 1905)

Banisteria : a journal devoted to the natural history of Virginia - Virginia Natural History Society. (Virginia Natural History Society, 1995)

Banisteria : a journal devoted to the natural history of Virginia - Virginia Natural History Society. (Virginia Natural History Society, 2000)

Banisteria : a journal devoted to the natural history of Virginia - Virginia Natural History Society. (Virginia Natural History Society, 2003)

Banisteria : a journal devoted to the natural history of Virginia - Virginia Natural History Society. (Virginia Natural History Society, 2006)

Banisteria : a journal devoted to the natural history of Virginia - Virginia Natural History Society. (Virginia Natural History Society, 2007)

Der Bau der Vögel - Marshall, William, 1845 -1907 (J.J. Weber, 1895)

The Bay leaf - California Native Plant Society. East Bay Chapter. (California Native Plant Society, 2014)

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)

Benjamin Smith Barton : naturalist and physician in Jeffersonian America - Ewan, Nesta. (Missouri Botanical Garden Press, 2007)

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

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 (1888)

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

The Bermuda islands : an account of their scenery, climate, productions, physiography, natural history and geology, with sketches of their discovery and early history, and the changes in their flora and fauna due to man - Verrill, A. E. (Addison Emery), 1839 -1926 (The author, 1902)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1899)

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 1 Author catalogue A to J - Field Museum of Natural History. (Field Museum of Natural History, 1939)

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)

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)

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)

Bidrag til Kundskab om Fuglefaunaen i Brasiliens Campos - Reinhardt, J. (Johannes), 1816 -1882 (B. Lunos Bogtrykkeri ved F. S. Muhle, 1870)

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)

Biochemical bulletin - Columbia University Biochemical Association. (Columbia University Biochemical Association)

La biodiversidad en Aguascalientes : estudio de estado - Cruz Angón, Andrea (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2008)

La biodiversidad en Chiapas : estudio de estado - Cruz Angón, Andrea (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2013)

La biodiversidad en Chihuahua : estudio de estado - Barajas, Nélida (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2014)