• noun
• synonym
• antonym

• Aythya affinis (noun)
  1. common scaup of North America; males have purplish heads
• Aythya americana (noun)
  1. north American diving duck with a grey-and-black body and reddish-brown head
• Aythya ferina (noun)
  1. heavy-bodied Old World diving duck having a grey-and-black body and reddish head
• Aythya marila (noun)
  1. large scaup of North America having a greenish iridescence on the head of the male
• Aythya valisineria (noun)
  1. north American wild duck valued for sport and food
• genus Aythya (noun)
  1. canvasback; redhead; pochard; etc.
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