Helicopter surveillance finds dead and dying greater crested terns off South Australian coast as H5 virus spreads Get our breaking news email , free app or daily news podcast More than 80 dead and sick birds seen on rocks off the South Australian coast are suspected to be the first mass mortality...
Source: [Guardian World](https://www.theguardian.com/world/2026/aug/01/first-australian-mass-mortality-event-suspected-as-deadly-bird-flu-virus-rapidly-escalates-among-native-birds)