1988 IUCN red list of threatened animals (1988)

1990 IUCN red list of threatened animals (1990)

1994 IUCN red list of threatened animals (1994)

Abhandlungen und Berichte des Königl. Zoologischen und Anthropologisch-Etnographischen Museums zu Dresden - Königl. Zoologisches und Anthropologisch-Ethnographisches Museum zu Dresden (Germany) (R. Friedlaender, 1890)

Abstract of the proceedings of the Linnaean Society of New York - Linnaean Society of New York (The Society, 1888)

Abstract of the proceedings of the Linnaean Society of New York - Linnaean Society of New York (The Society, 1903)

Abstract of the proceedings of the Linnaean Society of New York - Linnaean Society of New York (The Society, 1917)

Additions to the ornithology of Guadalupe Island - Bryant, Walter E. (1887)

Aguas continentales y diversidad biológica de México - Arriaga Cabrera, Laura (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2000)

Alauda : revue internationale d'ornithologie - Muséum national d'histoire naturelle (France) (Société d'études ornithologiques de France, 1974)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1844)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1866)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1871)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1872)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1873)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1874)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1875)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1876)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1884)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1891)

American ornithology, for home and school - Reed, Chester A. (Chester Albert), 1876 -1912 (Charles K. Reed], 1904)

American ornithology; or, The natural history of birds inhabiting the United States, not given by Wilson - Bonaparte, Charles-Lucien, 1803 -1857 (Carey, Lea & Carey, 1825)

American ornithology : or, The natural history of the birds of the United States - Baird, Spencer Fullerton, 1823 -1887 (Porter and Coates, 1870)

American ornithology; or, the natural history of the birds of the United States - Bonaparte, Charles-Lucien, 1803 -1857 (Porter & Coates, 1878)

American ornithology, or, The natural history of the birds of the United States - Bonaparte, Charles-Lucien, 1803 -1857 (Cassell, Petter & Galpin, 1880)

American ornithology, or, The natural history of the birds of the United States : illustrated with plates engraved from drawings from nature - Baird, Spencer Fullerton, 1823 -1887 (Porter & Coates, 1878)

American ornithology; or, The natural history of the birds of the United States - Bonaparte, Charles-Lucien, 1803 -1857 (Cassell, Petter & Galpin, 1870)

American ornithology, or, The natural history of the birds of the United States - Ord, George, 1781 -1866 (Whittaker, Treacher & Arnot, 1832)

American ornithology, or, The natural history of the birds of the United States - Ord, George, 1781 -1866 (Printed for Constable and Co, 1831)

American ornithology, or the natural history of the birds of the United States - Jameson, Robert, 1774 -1854 (pr. for Constable, 1831)

Anales de la Universidad Central del Ecuador - Universidad Central del Ecuador. (Imp. de la Universidad Central, 1894)

Anales del Museo Nacional de Buenos Aires - Museo Nacional de Buenos Aires. (Impr. de Juan A. Alsina, 1895)

Anales del Museo Nacional de México - Museo Nacional de México. (El Museo, 1877)

The animal kingdom : arranged in conformity with its organization - Gray, John Edward 1800 -1875 (Printed for G.B. Whittaker, 1829)

The animal kingdom : arranged in conformity with its organization - Gray, John Edward 1800 -1875 (Printed for G.B. Whittaker, 1835)

Annalen des Wiener Museums der Naturgeschichte - Wiener Museum der Naturgeschichte. (Rohrmann und Schweigerd, 1836)

Annales des sciences naturelles. Zoologie - Audouin, Jean Victor, 1797 -1841 (Crochard, 1854)

Annali di storia naturale (1829)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1842)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1852)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1855)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1856)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1858)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1912)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1910)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1922)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1926)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1928)

Annals of the Lyceum of Natural History of New York - Lyceum of Natural History (New York, N.Y.) (1828)

Annals of the Lyceum of Natural History of New York - Lyceum of Natural History (New York, N.Y.) (1862)

Annals of the Lyceum of Natural History of New York - Lyceum of Natural History (New York, N.Y.) (1867)

Annals of the Lyceum of Natural History of New York - Lyceum of Natural History (New York, N.Y.) (1870)

Annals of the Lyceum of Natural History of New York - Lyceum of Natural History (New York, N.Y.) (1874)

Annals of the Lyceum of Natural History of New York - Lyceum of Natural History (New York, N.Y.) (1824)

Annals of the New York Academy of Sciences - New York Academy of Sciences. (New York Academy of Sciences, 1877)

Annotated bibliographies on selected bird species inhabiting the California desert - Thelander, Carl G. ([S.l, 1979)

Annotated list of the Avery bird collection in the Alabama museum of natural history (Geological survey museum) - Geological Survey of Alabama. (1921)

Annotated list of the Avery bird collection in the Alabama Museum of Natural History (Geological Survey Museum) - Avery, Mary E. (1921)

Annual record of science and industry - Baird, Spencer Fullerton, 1823 -1887 (Harper & Brothers, 1875)

Annual report - New York State Museum. (University of the State of New York, 1914)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1889)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1891)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1893)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1897)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1900)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1901)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1915)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1917)

Annual report of the Ohio State Academy of Science - Ohio Academy of Science. (The Academy, 1901)

Annual Report of the Regents of the University on the condition of the State Cabinet of Natural History, with catalogues of the same - New York State Museum. (The University, 1865)

Annual report of the Secretary of the State Board of Agriculture of the State of Michigan - Michigan State College. Agricultural Experiment Station. (The Board, 1862)

Annual report upon the geographical surveys west of the one-hundredth meridian in the states and territories of California, Oregon, Nevada, Texas, Arizona, Colorado, Idaho, Montana, New Mexico, Utah, and Wyoming : being Appendix NN of the Annual report of the Chief of Engineers for 1877 - Geographical Surveys West of the 100th Meridian (U.S.) (Govt. Print. Off, 1877)

Annual reports - Academy of Natural Sciences of Philadelphia. (The Academy], 1875)

Archiv für Naturgeschichte. Abteilung B (Nicolai, 1913)

Archiv für Naturgeschichte. Abteilung B (Nicolai, 1914)

Archiv für Naturgeschichte. Abteilung A (Nicolai, 1912)

Archiv für Naturgeschichte (Nicolai, 1837)

Archiv für Naturgeschichte. Abteilung A (Nicolai, 1915)