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• n  small North American diving duck; males have bushy head plumage

• butterball
• dipper
• Bucephela albeola

News & Articles

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• Baffling buffleheads
  Buffleheads, the smallest of the diving ducks, were thought to be nesting on the Horicon Marsh State Wildlife Area in 2009, though confirmation could not be obtained.
  June 26, 2013 - Beaver Dam Daily Citizen