Australia’s lyrebird can mimic chainsaws and camera shutters with unsettling precision

In the forests of southeastern Australia, a listener might hear a chainsaw revving, a camera shutter clicking, or a car alarm wailing, only to discover the source is a bird. The lyrebird is one of the most accomplished vocal mimics in the natural world, capable of reproducing the songs of dozens of other species and, in some cases, the mechanical sounds of the human world with unsettling precision. Its imitations can be so convincing that a person nearby may look for a machine that is not there.

This talent sits at the center of one of the animal kingdom’s most elaborate courtship displays. The lyrebird’s mimicry is not idle noise but a carefully performed audition, refined over a bird’s lifetime and used to impress potential mates. The result is a living sound library, walking the forest floor.

A mimic of both nature and machinery

The superb lyrebird, the best known of the two lyrebird species, is famous for weaving the calls of other birds into its own song. A single male can imitate the calls of many surrounding species so accurately that even those birds may respond. As Britannica’s entry on the lyrebird describes, the bird’s vocal repertoire is remarkable both for its range and for its accuracy.

What has captured the public imagination, though, are reports of lyrebirds reproducing artificial sounds. Observers and recordings have documented birds imitating chainsaws, camera shutters, and other human-made noises they may have heard in or near their habitat. Whether a given individual learned a sound from machinery directly or picked it up from other lyrebirds, the effect is the same: a wild bird producing a startlingly faithful copy of an industrial or mechanical sound.

The anatomy behind the imitation

The lyrebird’s vocal ability rests on a highly developed syrinx, the sound-producing organ birds use in place of a larynx. The lyrebird’s syrinx is unusually muscular and flexible, giving it fine control over the pitch, timbre, and structure of the sounds it makes. This physical apparatus allows it to shift rapidly between imitations and to layer them into a continuous, shifting performance.

Mimicry itself is a learned skill. Young lyrebirds acquire their repertoire by listening, and males in particular build and polish their song over years. The sounds a bird produces reflect what it has been exposed to, which is why local populations can develop distinctive collections of imitations passed along within a community. In effect, a lyrebird’s song is a record of the sonic environment it grew up in.

The display that gives the bird its name

The lyrebird takes its name from the male’s spectacular tail, which in the superb lyrebird includes long, curved outer feathers historically thought to resemble a lyre, the ancient stringed instrument. During courtship, the male raises and fans this tail over his head in a shimmering canopy while delivering his full vocal performance.

The visual and vocal displays work together. A male will often clear a small mound or stage on the forest floor, then sing and dance to attract females, cycling through his imitations as part of the show. The most impressive performers, combining a rich sound repertoire with a dazzling tail display, are the ones most likely to win mates, which places a strong evolutionary premium on both skills.

Why accurate mimicry matters to a lyrebird

The precision of a lyrebird’s imitations is not merely a curiosity; it appears to carry real information. A broad and accurate repertoire may signal a male’s age, experience, and fitness, since acquiring and perfecting so many sounds takes time and practice. A female assessing potential mates can, in effect, judge a male partly on the quality and variety of his performance.

This helps explain why the mimicry can be so exact. Sloppy imitations would carry less weight, so there is pressure toward faithfulness. The inclusion of unusual sounds, whether the calls of rare neighbors or the noise of distant machinery, may also help a performer stand out from rivals, adding novelty to an already crowded soundscape.

A ground-dwelling life in the forest

Despite the theatrical displays, lyrebirds spend most of their time quietly foraging. They are large, mostly ground-dwelling birds that scratch through leaf litter with strong feet and claws, turning over soil and debris in search of insects, worms, and other small invertebrates. This constant digging plays a role in the forest ecosystem, aerating the soil and moving nutrients as the birds feed.

Lyrebirds are generally shy and can be difficult to observe, more often heard than seen. Their preference for dense, moist forest habitat means that healthy lyrebird populations are tied to the health of those forests, and disturbances to their habitat can affect where and how they live.

A sound archive worth protecting

Because lyrebirds learn and pass on sounds culturally, their songs can preserve echoes of the past, including imitations of species or noises no longer common in an area. This makes each population’s repertoire something like a living archive, shaped by history and place. Researchers studying vocal learning and mimicry find the lyrebird a compelling example of how complex, learned behavior can arise and persist in the wild.

For the casual observer, the appeal is simpler and more immediate. There are few experiences in nature quite like standing in a quiet forest and hearing, from somewhere in the undergrowth, the unmistakable sound of a shutter or a saw, produced not by a machine but by a bird performing the only way it knows how. The lyrebird’s uncanny talent is a reminder of how strange and inventive the natural world can be.

This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.