With H5 bird flu now detected in Australia, some info from Wildlife Health Australia. From the page:
If you suspect a wild animal may be infected with H5 bird flu:
AVOID contact with sick or dead wildlife and their environment. Observe from a distance and keep pets away.
RECORD what you see, the location the animal was found, and take photos or video if it is safe to do so.
REPORT any unusual sickness or mass mortality events in wildlife via the Emergency Animal Disease Hotline on 1800 675 888.
Avian influenza is a nationally notifiable disease meaning if you suspect an animal is showing signs of the disease, you must report it.
Reporting will alert authorities so they can evaluate the need for testing or other investigation. Even if testing is not undertaken, all reports help inform our understanding of the disease and how to manage it.
From H5 Avian Influenza (H5 Bird Flu) and Wildlife
Advice for people who encounter sick or dead wildlife:
Infected live birds or mammals may show a wide range of signs, including:
Lack of coordination, tremors, seizures, swimming in circles
Twisted necks or other unusual postures
Inability to stand or fly
Difficulty breathing, coughing or sneezing
Swelling around the head, neck and eyes
Cloudiness or change in colour of the eyes
Sudden death, including the potential for mass mortality events