|  adult; speckled brown plumage; blue speculum (Hawaii, USA; 2007-04-01)
 | Hawaiian Duck
 Anas wyvilliana
 
 Native Range: 
Pacific Ocean Region
 
 Notes: 
		
		a close relative of the Mallard Duck, with which it sometimes hybridizes; unlike the Mallard Duck, this species is not sexually dimorphic, and both sexes look quite like drab female mallards; a rare and secretive bird usually found in pairs or small groups.
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