The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1973)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1976)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1977)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1978)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1980)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1982)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1984)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1987)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1988)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1991)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1992)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1993)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1994)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1995)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1996)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1997)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1998)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1999)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 2000)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 2003)

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

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, 2011)

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

The Wilson quarterly - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Chapter of the Agassiz Association, 1892)

Wingspan : newsletter for members of the Raptor Research Foundation - Raptor Research; Technical Assistance Center (U.S.) (Raptor Research & Technical Assistance Center, 1992)

Wingspan : newsletter for members of the Raptor Research Foundation - Raptor Research; Technical Assistance Center (U.S.) (Raptor Research & Technical Assistance Center, 1996)

Wingspan : newsletter for members of the Raptor Research Foundation - Raptor Research; Technical Assistance Center (U.S.) (Raptor Research & Technical Assistance Center, 2012)

Wingspan : newsletter for members of the Raptor Research Foundation - Raptor Research; Technical Assistance Center (U.S.) (Raptor Research & Technical Assistance Center, 2013)

Wingspan : newsletter for members of the Raptor Research Foundation - Raptor Research; Technical Assistance Center (U.S.) (Raptor Research & Technical Assistance Center, 2015)

Wingspan : newsletter for members of the Raptor Research Foundation - Raptor Research; Technical Assistance Center (U.S.) (Raptor Research & Technical Assistance Center, 2019)

Wonders of the bird world - Sharpe, Richard Bowdler, 1847 -1909 (Frederick A. Stokes company, 1921)

Wonders of the bird world - Sharpe, Richard Bowdler, 1847 -1909 (Frederick A. Stokes company, 1898)

World Checklist of Threatened Birds (1990)

World Checklist of Threatened Birds (1993)

The world's birds a simple and popular classification of the birds of the world - Finn, Frank, 1868 -1932 (Hutchinson & co, 1908)

The world's lumber room : a gossip about some of its contents - Gaye, Selina. (Cassell & company, limited, 1885)

Wörterbücher der Naturgeschichte : in der deutschen, holländischen, dänischen, schwedischen, englischen, französischen, italienischen, Spanischen und Portugisischen Sprache - Nemnich, Philipp Andreas, 1764 -1822 (Adam Friedrich Böhme, 1798)

A year with nature - Westell, W. Percival (William Percival), 1874 -1943 (1900)

The young oölogist (1884)

Zeitschrift für Säugetierkunde : im Auftrage der Deutschen Gesellschaft für Säugetierkunde e.V - Deutsche Gesellschaft für Säugetierkunde (Die Gesellschaft, 1977)

Zoologica : scientific contributions of the New York Zoological Society - New York Zoological Society. (1925)

Zoological bibliography, or, Opera zoologica (Aves Press Ltd, 2011)

The Zoological journal - Sowerby, James de Carle, 1787 -1871 (W. Phillips, 1824)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1883)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1904)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1915)

Zoölogical science - Redfield, A. M. (Anna Maria), 1800 -1888 (E. B. & E. C. Kellogg, 1865)

Zoölogical science, or, Nature in living forms ... : adapted to elucidate the chart of the animal kingdom - Redfield, A. M. (Anna Maria), 1800 -1888 (E.B. & E.C. Kellogg, 1858)

Zoological sketches - Sclater, Philip Lutley, 1829 -1913 (Henry Graves, 1861)

Zoological Society bulletin - New York Zoological Society. (New York Zoological Society, 1901)

Zoological Society bulletin - New York Zoological Society. (New York Zoological Society, 1907)

Zoological Society bulletin - New York Zoological Society. (New York Zoological Society, 1912)

Zoological Society bulletin - New York Zoological Society. (New York Zoological Society, 1913)

Zoological Society bulletin - New York Zoological Society. (New York Zoological Society, 1922)

Zoologie médicale exposé méthodique du régne animal basé sur l'anatomie, l'embryologie et la paléontologie comprenant la description des espèces employées en médicine de celles qui sont venimuses et de celles qui sont parasites de l'homme et des animaux. Tome premier - Gervais, Paul, 1816 -1879 (J. B. Baillière, 1859)

Zoologie universelle et portative, ou, Histoire naturelle de tous les quadrupedes, cétacées, oiseaux et reptiles connus : de tous les poissons, insectes et vers, ou nommés, ou anonymes, mais indigenes : et d'un très-grand nombre de poissons, d'insectes et de vers anonymes et exotiques : jointe à une concordance des divers noms qui leur ont été donnés : le tout disposé selon l'ordre alphabétique, & rapporté à l'ordre méthodique : avec un supplément que le lecteur est prié d consulter : ouvrage également destiné aux naturalistes & aux gens du monde - Ray, Playcard Augustin Fidele. (Chez l'auteur, 1788)

Zoologische Beyträge zur XIII. Ausgabe des Linnéischen Natursystems - Linné, Carl von, 1707 -1778 (In der Weidmannischen Buchhandlung, 1794)

Zoologische Beyträge zur XIII. Ausgabe des Linnéischen Natursystems - Linné, Carl von, 1707 -1778 (In der Weidmannischen Buchhandlung, 1795)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1867)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1881)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1887)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1890)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1894)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1905)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1906)