John Gould (English, 1804-1881)
Saverio Manetti (Italian, 1723 – 1785)
Lorenz Oken (German, 1779 – 1851)
Johann Friedrich Naumann (German, 1780 – 1857)
Johann Friedrich Naumann (German, 1780 – 1857)
Marcus Elieser Bloch (German, 1723–1799)
Johan Erik Vesti Boas (Danish, 1855-1935)
George Hudson (New Zealander, 1867 – 1946)
John George Wood (English, 1827 – 1889)
Mark Catesby (English, 1683 – 1749)
John James Audubon (American, 1785-1851)
John Edwards Holbrook (American, 1796 – 1871)
Henry Seebohm (English, 1832 – 1895)
Pieter Pietersz. Barbiers (Dutch, 1749 - 1842)
John Woodhouse Audubon (American, 1812-1862)
John Edwards Holbrook (American, 1796 – 1871)
Joseph Smit (Dutch, 1836 – 1929)
Alexander Pope Jr. (American, 1849-1924)
John Woodhouse Audubon (American, 1812-1862)
Richard Ansdell (English, 1815 - 1885)
Henry Thomas Alken (English, 1785 – 1851)
Alexander Koester (German, 1864-1932)
William Swainson (English, 1789 – 1855)
Constant Troyon (French, 1810-1865)
René-Primevère Lesson (French, 1794 – 1849)
Louis Agassiz (American, 1807 – 1873)
Frederick DuCane Godman (English, 1834 – 1919)