Australians are being urged to avoid but record and report sick animals following the first-time detection of a deadly avian disease on the mainland.
Confirmation of H5 bird flu was announced on Saturday after a sick brown skua was found on a remote beach in Cape Le Grand National Park near Esperance, about 700km southeast of Perth.
This strain has already killed millions of animals across the world and could threaten Australia's native wildlife and farmed animals.