a stiff-tailed American duck, Oxyura jamaicensis, the adult male of which has a brownish-red body, black crown, and white cheeks.
Origin of ruddy duck
An Americanism dating back to 1805–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a small duck, Oxyura jamaicensis, that inhabits marshes, ponds, etc, in North America and N South America and has a stiff upright tail. The male has a reddish-brown body and blue bill in the breeding season
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012