A species can go extinct in more ways than one.
There is the extinction of the body — when the last individual dies and the line ends. But there is another kind, quieter and harder to see: the extinction of culture. Of the things a species knows, passes down, and uses to be itself.
The regent honeyeater, one of Australia's most critically endangered birds, has been experiencing both kinds simultaneously.
With fewer than 250 regent honeyeaters estimated to remain in the wild, the bird's population has collapsed so catastrophically that young males were no longer encountering enough adults of their own species to learn from. Birds learn their songs by listening to their parents and neighbours. Without enough teachers, young regent honeyeaters were growing up not knowing what they were supposed to sound like — improvising calls, mimicking other species, or singing simplified versions of a song that had grown increasingly unrecognisable.
This matters for a reason that is both deeply biological and quietly heartbreaking: birdsong is how male regent honeyeaters attract mates. Without the right song, females don't recognise them as suitable partners. Cultural erosion was driving reproductive failure.
In March 2026, researchers at Taronga Conservation Society Australia and the Australian National University announced that they had fixed it.
The solution was a 'song tutoring' programme, conducted over several years at Taronga Zoo in Sydney and Taronga Western Plains Zoo in Dubbo. Researchers used recordings and — crucially — direct exposure to just two wild-born male regent honeyeaters as live tutors. Zoo-bred young males were given the opportunity to listen, watch, and learn from birds who still remembered how their species was supposed to sound.
The results exceeded expectations. Over 50 percent of zoo-bred males are now singing songs that closely resemble the historic wild song. The zoo population — once the place where conservationists hoped to preserve a population — has become the sole remaining keeper of the species' true cultural heritage.
The next step is release: getting these culturally restored males into wild populations, where they can pass the traditional song on to others. Whether wild birds accept and learn from them is the crucial remaining question.
'Conserving biodiversity must also include preserving animal culture,' the research team noted — a principle that feels almost radical but is increasingly being recognised as essential.
A species that remembered its song again. Still endangered. Still fragile. But singing. 🎵