Health authorities confirmed Sydney's first case of the highly pathogenic H5N1 bird flu strain, marking the city's initial detection since the virus reached mainland Australia in June.
Federal data indicates 468 confirmed H5N1 events across Australia as of Wednesday, with 20 of those cases located in New South Wales, though no commercial poultry infections are reported.
Northern Beaches Mayor Sue Heins warned of potential wildlife impacts, while officials advised pet owners to prevent contact between animals and wild bird carcasses to mitigate further spread.