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Australia

Victoria considers emergency extraction of threatened birds as H5N1 bird flu spreads

Officials weigh intervention for species including brolgas and helmeted honeyeaters as spring breeding season heightens risk

By LineZotpaper
Published
Read Time2 min
The Victorian government is considering emergency extractions of threatened bird species from the wild to protect them from the H5N1 strain of avian influenza, which is spreading through wild bird populations in the state's northern wetlands.

Northern Victoria's wetlands are brimming with birdlife in spring, but this year the breeding season carries an additional threat: the H5N1 strain of avian influenza. The disease is spreading through wild bird populations, raising concerns for already vulnerable species such as brolgas and black swans.

James Todd, chief biodiversity officer at the Department of Energy, Environment and Climate Action (DEECA), said the government was considering direct interventions for species not yet in captivity. "We might consider doing some sort of emergency extraction," Mr Todd said.

Several threatened species are already held in captivity by Zoos Victoria, including the orange-bellied parrot, plains wanderer, regent honeyeater, and the helmeted honeyeater — one of Victoria's formal emblems. Mr Todd said he was worried that small wild populations could plummet as the virus circulates. However, he noted that no reported cases worldwide have yet led to a species going extinct. "That's kind of the light on the hill," he said. "But again, we have to be careful because we can't exactly translate the overseas experience to Australia and Victoria because of our unique fauna."

Victoria's brolga population sits at around 1,000, mostly in the south-west, but in northern Victoria and southern New South Wales the estimated population is just 50, making them an incredibly rare sight. Mr Todd said the Victorian brolgas were effectively isolated from the more abundant central Australian population.

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Analysis

Why This Matters

  • This is the first time Victoria has publicly considered emergency extraction of birds due to H5N1, signaling the severity of the threat.
  • The outcome will affect the survival of several endangered species, including the helmeted honeyeater and brolga.
  • If successful, the approach could become a model for other states or countries facing similar wildlife disease outbreaks.

Background

H5N1 avian influenza has caused mass die-offs of birds and mammals globally, but Australia has so far been largely spared. However, the virus has recently been detected in wild bird populations in southeastern Australia, prompting conservation authorities to prepare. Victoria's unique fauna, including isolated populations of brolgas, may be particularly vulnerable to a novel strain.

Key Perspectives

Victorian Government (DEECA): Concerned about direct impacts on threatened species and considering preemptive capture of birds not yet in captivity to establish safe populations. No extinction has been reported overseas, but Australian conditions may differ. Zoos Victoria & Wildlife Facilities: Already hold captive populations of several at-risk species; their capacity to take on additional birds is a key factor. Conservation Advocates: Likely to support intervention but may have questions about stress to birds from capture and long-term management of extracted populations.

What to Watch

  • Reports of H5N1 detection in wild bird populations across Victoria and the timing relative to breeding.
  • Decisions on which species are prioritised for emergency extraction and whether sufficient captive capacity exists.
  • Any signs of spillover to other wildlife, as has occurred overseas.

Sources

Zotpaper

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