Definitions

from The Century Dictionary.

  • noun A scaup duck; the blackhead (which see).

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Zoöl.) A duck of the genus Fuligula. Two American species (Fuligula marila and Fuligula affinis) are common. See scaup duck.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun the scaup (of genus Aythya)
  • noun Spermophaga, estrildid finches found in tropical Africa.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun diving ducks of North America having a bluish-grey bill

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

blue +‎ bill

Examples

Comments

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  • as opposed to blue-toothed????

    March 17, 2012