John Gould (English, 1804-1881)
John Gould (English, 1804-1881)
John Gould (English, 1804-1881)
Anonymous
John Gould (English, 1804-1881)
John Gerrard Keulemans (Dutch, 1842-1912)
Josef Wawra (Austrian, 1893-1935)
Daniel Giraud Elliot (American, 1835 – 1915)
Frank Edward Clarke (New Zealander, 1849 – 1899)
Frank Edward Clarke (New Zealander, 1849 – 1899)
Frank Edward Clarke (New Zealander, 1849 – 1899)
Frank Edward Clarke (New Zealander, 1849 – 1899)
Pieter Pietersz. Barbiers (Dutch, 1749 - 1842)
Pieter Pietersz. Barbiers (Dutch, 1749 - 1842)
Julius Adam the elder (German, 1826–1874)
Wilhelm Kuhnert (German, 1865-1926)