Frank Babbage (English, 1858–1916)
Emil Volkers (German, 1831-1905)
Paul-Andre Robert (Swiss, 1901-1977)
René-Primevère Lesson (French, 1794 – 1849)
John Gould (English, 1804-1881)
Louis-Isidore Duperrey (French, 1786 – 1865)
Abraham Meertens (Dutch, 1747-1823)
Alexander Francis Lydon (English, 1836-1917)
Wilhelm Kuhnert (German, 1865-1926)
Paul-Andre Robert (Swiss, 1901-1977)
Charles Robert Knight (American, 1874-1953)
Wilhelm Kuhnert (German, 1865-1926)
George Hudson (New Zealander, 1867 – 1946)
Saverio Manetti (Italian, 1723 – 1785)
Marcus Elieser Bloch (German, 1723–1799)
Louis Agassiz (American, 1807 – 1873)
Philipp Franz Balthasar von Siebold (German, 1796 – 1866)
William Houghton (English, 1828–1895)
Alexander Francis Lydon (English, 1836-1917)
John William Lewin (English, 1770-1819)
Joseph Smit (Dutch, 1836 – 1929)
John James Audubon (American, 1785-1851)
Floris Verster (Dutch, 1861-1927)
Daniel Giraud Elliot (American, 1835 – 1915)
Heinrich Carl Küster (German, 1807 – 1876)
Daniel Giraud Elliot (American, 1835 – 1915)
Frederick DuCane Godman (English, 1834 – 1919)