Swans swim in front of the central business district (CBD) of Western Australia's capital city of Perth on June 22, 2026. Australia is checking for any sign of "entrenched" H5 bird flu in its wildlife after detecting the country's first two cases, the government said. Scientists confirmed at the weekend they had found the disease in a migratory sea bird, a brown skua, in remote Western Australia. (Photo by Antony DICKSON / AFP via Getty Images)