Male lyrebirds use clever mimicry to increase their chances of sexual success, according to a new study involving researchers from The Australian National University.  

Lyrebirds are famous for their ability to mimic complex sounds of other species, including “human” sounds like chainsaws. Now biologists think they’ve discovered what drives this skill. 

According to study co-author, ANU Professor Robert Magrath, wild males have two main types of mimicry. 

“They are famous for mimicking the songs of other birds, delivered loudly in breathtaking recitals,” Professr Magrath said. 

“But we found they use a different type of mimicry at their display mounds, where females visit for sex. They use this mimicry when a female tries to leave without mating, and during the act itself – to create the illusion of a nearby threat.” 

Lead author Dr Anastasia Dalziell, a Visiting Fellow at ANU, says this suggests it’s a deceptive part of male lyrebirds’ sexual strategy.  

“They mimic what’s known as mobbing – a common anti-predator ploy. It involves a loud alarm call to attract other birds to harass a predator, eventually forming a noisy flock,” Dr Dalziell said. 

“The male lyrebirds not only imitate the alarm calls of several species of songbird, they pattern the calls to create the illusion of many birds calling at the same time, even including the sound of wingbeats. It’s a very convincing illusion – so convincing it fools other birds into responding.”  

This mimicry has the characteristics of a “sensory trap” – with the male attempting to trick the female into responding as though there’s a predator threat. 

“Mimicking when the female attempts to leave may be a bit like saying “it’s dangerous outside, stay”, while mimicking during copulation could extend the duration, like saying “freeze”, making sure the sperm is transferred,” Dr Dalziell said. 

A female lyrebird. Photo: Alex Maisey

The findings were a surprise to the research team. 

“At first it seemed absurd, but we quickly realised that mimicking a mobbing flock during copulation was the norm for male lyrebirds. It happened during every single copulation we filmed,” Dr Dalziell said. 

“The more we researched it the more remarkable this behaviour became. Copulation calls are not common among song birds, and song birds very rarely copulate for longer than two seconds. The lyrebirds in our study averaged 45 seconds.” 

Dr Dalziell is currently a postdoctoral Research Fellow at Wollongong University, as well as a Visiting Fellow at the University of Western Sydney and Cornell University in the US. 

The team now hope to delve further into how the female lyrebirds respond to both real and mimicked mobbing flocks. 

Their work has been published in the journal Current Biology.  

Top image suppllied by co-author Alex Maisey

Contact the media team

Jess Fagan

Media Manager


You may also like

Article Card Image

Australia’s most at-risk bird species share some common traits

Australian birds that live on islands are among the species most at risk of extinction, a first-of-its-kind ANU study has shown.

Article Card Image

Alternative fuels are no direct ticket to sustainable air travel

Sustainable aviation fuel sounds great for green travel, but the reality of their broader environmental impact is much more complicated.

Article Card Image

Australian climate action is heading the right way, just not fast enough

Low-cost renewables provide an easy win to help tackle a warming world, ANU expert says.

Subscribe to ANU Reporter

Anu Logo

+61 2 6125 5111

The Australian National University, Canberra

CRICOS Provider: 00120C

ABN: 52 234 063 906

EDX Logo
APRU Logo
IARU Logo
Group of eight Australia Logo