Bird Flu Threatens Vulnerable Australian Species

Conservationists warn that H5N1 could drive some native bird species towards extinction as the outbreak spreads across the country.

Updated on Nov. 8, 2026 in Bird Watching

Bird Flu Threatens Vulnerable Australian Species

Live Poll

Should the federal government spend more to protect Australian wildlife from disease?

Conservationists have warned that vulnerable Australian bird species risk extinction from the H5N1 bird flu outbreak, which was first confirmed in Australia on 19 June. As of 5 November, 734 flu events had been reported in birds and mammals.

Why it matters

Australia's tracking system counts geographic spread, affected species and patterns rather than individual cases, and is designed to protect poultry rather than wildlife. Authorities warn the virus will eventually breach commercial poultry farms, which are valued at $1.37 billion.

More than 1000 greater crested terns died on remote islands off South Australia in August, revealed by aerial surveillance. The federal government committed $20 million to wildlife resilience, against a requested $200 million package.

The players

Esperance, Western Australia

A coastal town in Western Australia where an infected migrating brown skua washed up, marking the first confirmed detection of H5N1 in the country.

Cleland Wildlife Park

A wildlife park in Adelaide, South Australia, where more than 200 native birds have been fully vaccinated against the virus.

Phillip Island

A island off the coast of Victoria, home to a little penguin colony where almost 2000 penguins have been vaccinated.

The details

The H5N1 strain was first confirmed after a migrating brown skua washed up on a remote beach near Esperance in Western Australia. Authorities have been on alert for mass mortality events since August, and more than 200 native birds at Adelaide's Cleland Wildlife Park have been fully vaccinated.

19 June: H5N1 first confirmed in Australia after a skua was found near Esperance, Western Australia.
August: Greater crested tern deaths on remote islands off South Australia were revealed by aerial surveillance.
12 August: Australia began tracking bird flu by geographic spread, affected species and patterns.
5 November: 734 bird flu events had been reported across Australia.

Roadmap

The first confirmed H5N1 detection in Australia came after a single infected skua washed up in Western Australia in June. Since then, the outbreak has spread to seabird colonies and mammals, forcing authorities to change how they monitor it.

Birdwatchers and nature lovers should report sick or dead wild birds to the relevant state wildlife authority rather than handling them. Avoid touching carcasses and keep a respectful distance from colonies that may be affected.

The takeaway

Protecting native wildlife from bird flu depends on tracking impacts beyond poultry, and early reporting of sick birds helps authorities respond faster. Readers can support this by reporting unusual bird deaths to their state wildlife agency.

What happens next

Plans are underway in South Australia to vaccinate little penguin colonies at Victor Harbor and Kangaroo Island, and the virus is expected to spread further as waterbirds begin breeding in the Murray-Darling basin.