the scaup duck.
Origin of bluebill
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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The bluebill is a small fish some four or five inches long, and favourite food for the blue-fish.Days in the Open
Lathan A. Crandall
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