Dictionary.com
definitions

lyrebird

[lahyuh r-burd]
noun
  1. an Australian passerine bird of the genus Menura, the male of which has a long tail that is lyrate when spread.

Origin of lyrebird

First recorded in 1825–35; lyre + bird
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for lyrebird

lyrebird

noun
  1. either of two pheasant-like Australian birds, Menura superba and M. alberti, constituting the family Menuridae: during courtship displays, the male spreads its tail into the shape of a lyre
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