Heard Island

island of Heard Island and McDonald Islands

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Bird flu devastates seal population on remote Australian island
science Jun 18, 2026, 5:20 AM
Bird flu devastates seal population on remote Australian island
  • Researchers estimate that approximately 13,000 southern elephant seal pups have died from the H5N1 strain of bird flu on Heard Island since last August.
  • The study also found increased mortality rates in penguin populations, although the impact was less severe than on seal pups.
  • The findings highlight the urgent need for monitoring wildlife health in Australia and preparing for potential outbreaks on the mainland.
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