John Gould (English, 1804-1881)
John James Audubon (American, 1785-1851)
Eugène Joseph Verboeckhoven (Belgian, 1798-1881)
George Garrard (English, 1760-1826)
Saverio Manetti (Italian, 1723 – 1785)
William Houghton (English, 1828–1895)
Frederick DuCane Godman (English, 1834 – 1919)
Wright Barker (English, 1864–1941)
John Obadiah Westwood (English, 1805 – 1893)
John James Audubon (American, 1785-1851)
Frederick DuCane Godman (English, 1834 – 1919)
Gijsbert Gillisz. de Hondecoeter (Dutch, 1604-1653)
Jan Stobbaerts (Belgian, 1838 – 1914)
Louis Agassiz (American, 1807 – 1873)
Albert Bierstadt (American, 1830-1902)
Rodolpho von Ihering (Brazilian, 1883-1939)
Anonymous
Johann Friedrich Naumann (German, 1780 – 1857)
John Frederick Herring Jr. (English, 1820-1907)
John Edwards Holbrook (American, 1796 – 1871)
Adrien-Joseph Heymans (Belgian, 1839-1921)
Louis Agassiz Fuertes (American, 1874 – 1927)
Lorenz Oken (German, 1779 – 1851)
David Klöcker Ehrenstrahl (Swedish, 1628 – 1698)