John George Wood (English, 1827 – 1889)
Marcus Elieser Bloch (German, 1723–1799)
Emil August Göldi (Swiss, 1859-1917)
Frederick DuCane Godman (English, 1834 – 1919)
W. A . Blakston (English, 19th Century)
Marcus Elieser Bloch (German, 1723–1799)
John Woodhouse Audubon (American, 1812-1862)
Wilhelm Melchior (German, 1817-1860)
Johann Friedrich Naumann (German, 1780 – 1857)
Johann Rudolf Koller (Swiss, 1828–1905)
John Gerrard Keulemans (Dutch, 1842-1912)
Arthus Bertrand (French, 19th Century)
Theo van Rysselberghe (Belgian, 1862-1926)
Marcus Elieser Bloch (German, 1723–1799)
Louis Agassiz (American, 1807 – 1873)
Moritz Müller (German, 1841 - 1899)
W. A . Blakston (English, 19th Century)
John Gould (English, 1804-1881)
Johann Friedrich Naumann (German, 1780 – 1857)
Marmaduke Cradock (English, 1660-1717)
Frank Edward Clarke (New Zealander, 1849 – 1899)
John Ferneley (English, 1782 - 1860)
Johann Friedrich Naumann (German, 1780 – 1857)
Alfred Malherbe (French, 1804 – 1865)
John James Audubon (American, 1785-1851)