"Oshidori", trans. "Mandarin Ducks" Color woodcut.
Date between 1830 and 1858, printed later
Source Library of Congress
Author Utagawa Hiroshige (歌川広重) (1797–1858)  
Source: https://commons.wikimedia.org/wiki/File:Mandarin_duck_woodcut.jpg

The mandarin duck (Aix galericulata) is a perching duck species found in East Asia. Aix is an Ancient Greek word used by Aristotle to refer to an unknown diving bird, and galericulata is the Latin for a wig, derived from galerum, a cap or bonnet.