lyrebird

As nouns the difference between peacock and lyrebird

is that peacock is a male or female pheasant of the two genera: Pavo or Afropavo, whose males have extravagant tails while lyrebird is either of two large ground-dwelling Australian songbirds, of the genus Menura, named because of the beautiful tail feathers of one species, the superb lyrebird (species: Menura novaehollandiae) which can be erected to look like a lyre, most notable for their extraordinary ability to mimic natural and artificial sounds from their environment.

As a proper noun Peacock

is {{surname|lang=en}.