An Australian silver gull has tested positive for bird flu. Related Article Bird flu Bird flu can be fatal for cats and might stop off-leash dogs Environment Minister Murray Watt said the mass deaths in South Australia were “just the beginning” in what is likely to be a “long and difficult journey”. AdvertisementKate Millar, chief executive of Australia’s largest bird conservation group, Bird Life Australia, likened the mass deaths over the weekend to the moment bird flu first hit South America in 2022. Symptoms include being unable to stand, walk or fly properly, breathing difficulties, and mass deaths in one area. CORRECTION An earlier version of this story incorrectly stated that bird flu could soon affect Tasmanian tigers, quolls and platypuses.