Two pheasant-sized songbirds (forming the family Menuridae) of Australian rain forests, named for the elaborate, harp-shaped tail of the Superb Lyrebird. They have loud songs and calls and are fantastic mimics, sometimes clearly reproducing mechanical sounds, such as logging trucks and chain saws, along with the songs of other birds. Found on https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter