Edwin L. Sheppard (American, ?-1904)
Arthur Fitzwilliam Tait (American, 1819-1905)
Daniel Giraud Elliot (American, 1835 – 1915)
Allan Brooks (Canadian, 1869 – 1946)
William Swainson (English, 1789 – 1855)
Sheikh Zain al-Din (Indian, 18th century)
John Gould (English, 1804-1881)
John Gould (English, 1804-1881)
Franz Xaver von Pausinger (Austrian, 1839 – 1915)
Wilhelm Kuhnert (German, 1865-1926)
Geza Vastagh (Hungarian, 1866-1919)
Cyprián Majerník (Slovak, 1909 - 1945)
Friedrich Carl von Scheidlin (Austrian, 1822-1913)
Arthur Trevethin Nowell (English, 1862-1940)
Arthur Trevethin Nowell (English, 1862-1940)
Samuel Howitt (English, 1756-1822)
Gustav Prütz (German, 19th Century)
Jan Bedijs Tom (Dutch, 1813–1894)
Joseph Zephyris Gengembre (French, 1818-1870)
John James Audubon (American, 1785-1851)
Mark Catesby (English, 1683 – 1749)
Johann Friedrich Naumann (German, 1780 – 1857)
Fritz Thomsen (Danish, 1819 - 1891)
Daniel Giraud Elliot (American, 1835 – 1915)
Charles Hamilton Smith (English, 1776-1859)
Emil Volkers (German, 1831-1905)
Jacques-Laurent Agasse (Swiss, 1767 - 1849)
Emil Volkers (German, 1831-1905)