Paul-Andre Robert (Swiss, 1901-1977)
Louis Agassiz (American, 1807 – 1873)
Otto Staudinger (German, 1830 – 1900)
Samuel Howitt (English, 1756-1822)
Theodor Philipsen (Danish, 1840-1920)
Henry Barraud (English, 1811 – 1874)
Joseph Smit (Dutch, 1836 – 1929)
John Gould (English, 1804-1881)
Edward Julius Detmold (English, 1883-1957)
John Gerrard Keulemans (Dutch, 1842-1912)
George Shaw (English, 1751 – 1813)
John Frederick Herring Jr. (English, 1820-1907)
Lorenz Oken (German, 1779 – 1851)
Gerardus van Veen (Dutch, 1620–1683)
Rudolf Ribarz (Austrian, 1848-1904)
Marcus Elieser Bloch (German, 1723–1799)
Jacob Cox (American, 1810-1892)
Frederick DuCane Godman (English, 1834 – 1919)
David Klöcker Ehrenstrahl (Swedish, 1628 – 1698)
Rodolpho von Ihering (Brazilian, 1883-1939)
Edward Julius Detmold (English, 1883-1957)
Charles Emile Jacque (French, 1813 - 1894)
Daniel Giraud Elliot (American, 1835 – 1915)
Charles-Olivier de Penne (French, 1831-1897)
John James Audubon (American, 1785-1851)
Gustav Prütz (German, 19th Century)
Saverio Manetti (Italian, 1723 – 1785)
John James Audubon (American, 1785-1851)
George Hudson (New Zealander, 1867 – 1946)
John James Audubon (American, 1785-1851)
Frederick DuCane Godman (English, 1834 – 1919)
Friedrich Voltz (German, 1817-1886)
Johann Friedrich Naumann (German, 1780 – 1857)
George Hudson (New Zealander, 1867 – 1946)
John James Audubon (American, 1785-1851)
Marcus Elieser Bloch (German, 1723–1799)
Bruno Liljefors (Swedish, 1860–1939)
Daniel Giraud Elliot (American, 1835 – 1915)
Marcus Elieser Bloch (German, 1723–1799)