The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2006)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2007)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2008)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2009)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2010)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2012)

Wilson's American ornithology : with notes by Jardine ; to which is added a synopsis of American birds, including those described by Bonaparte, Audubon, Nuttall, and Richardson - Brewer, T. M. (Thomas Mayo), 1814 -1880 (Otis, Broaders, and Co, 1840)

Wilson's American ornithology, with notes by Jardine. To which is added a synopsis of American birds, including those described by Bonaparte, Audubon, Nuttall, and Richardson, by T.M. Brewer - Brewer, T. M. (Thomas Mayo), 1814 -1880 (T.L. Magagnos, 1854)

World Checklist of Threatened Birds (1990)

World Checklist of Threatened Birds (1993)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1894)

Zeitschrift für die gesammten Naturwissenschaft - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Wiegandt, Hempel & Parey, 1854)

Zentralblatt für Zoologie, allgemeine und experimentelle Biologie (B.G. Teubner, 1918)

Zoe:a biological journal (Zoe Publishing Co, 1891)

Zoología, Museo Cubano "Gundlach", catalogo general - Instituto de Segunda Enseñanza de La Habana. (Impr. "Cuba Intelectual", 1914)

Zoología - Claus, Carl, 1835 -1899 (Imprenta y litografía de F. Nacente, 1891)

Zoological classification; a handy book of reference with tables of the subkingdoms, classes, orders, etc., of the animal kingdom, their characters and lists of the families and principal genera - Pascoe, Francis Polkinghorne, 1813 -1893 (J. Van Voorst, 1880)

The Zoological journal - Sowerby, James de Carle, 1787 -1871 (W. Phillips, 1827)

The Zoological journal - Sowerby, James de Carle, 1787 -1871 (W. Phillips, 1828)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1874)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1888)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1902)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1906)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1913)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1922)

Zoological Society bulletin - New York Zoological Society. (New York Zoological Society, 1908)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1892)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1903)

Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere (G. Fischer, 1904)

Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere (G. Fischer, 1907)

Zoologischer Anzeiger - Deutsche Zoologische Gesellschaft. (VEB Gustav Fischer Verlag, 1889)

Zoologischer Anzeiger - Deutsche Zoologische Gesellschaft. (VEB Gustav Fischer Verlag, 1888)

Zoologischer Jahresbericht - Stazione zoologica di Napoli. (R. Friedlander, 1884)

Zoologischer Jahresbericht - Stazione zoologica di Napoli. (R. Friedlander, 1885)

The Zoologist : a monthly journal of natural history (1883)

The Zoologist : a monthly journal of natural history (1888)

The Zoologist : a monthly journal of natural history (1912)

The zoology of the voyage of H.M.S. Beagle ... during the years 1832-1836 - Darwin, Charles, 1809 -1882 (Smith, Elder & Co, 1838)

The zoology of the voyage of H.M.S. Beagle ... during the years 1832-1836 - Darwin, Charles, 1809 -1882 (Smith, Elder & Co, 1841)

The zoology of the voyage of H.M.S. Beagle, under the command of Captain Fitzroy, R.N., during the years 1832 to 1836 : Published with the approval of the Lords Commissioners of Her Majesty's Treasury - Darwin, Charles, 1809 -1882 (Published by Smith, Elder and Co., 65 Cornhill, 1841)

Zoosystematics and evolution (Pensoft, 2015)

Zur Ornithologie Brasiliens : Resultate von Johann Natterers Reisen in den Jahren 1817 bis 1835 - Natterer, Johann, 1787 -1843 (A. Pichler's Witwe & Sohn, 1871)