any of several birds of paradise of Australia, having a long bill, dark plumage, and elaborate courtship displays.
Origin of rifle bird
First recorded in 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
any of various birds of paradise of the genera Ptiloris and Craspedophora, such as C. magnifica (magnificent riflebird)
Word Origin for riflebird
from its call, compared to a whistling bullet
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