Bird flu is sweeping across Australia, devastating unique bird and mammal populations found nowhere else in the world. Mass mortality events have killed more than 1,000 birds, and the disease has crossed into seals, raising fears of further deaths. Australia confirmed its first case of H5N1 in June in a migratory brown skua on the southern coast. Since then, the disease has rapidly spread, with 309 confirmed bird flu events recorded nationwide. The state of South Australia has been the worst-hit, recording 194 events, including the deaths of over 1,000 crested terns on three remote islands.

The environment minister, Murray Watt, warned that mass mortalities of birds and mammals are likely, urging Australians to be realistic about the crisis. So far, the disease has not been detected in poultry or farms, and the risk to humans remains low. Authorities have advised the public not to touch affected animals but to photograph and report sightings via official hotlines.

Euan Ritchie, a professor of wildlife ecology at Deakin University, expressed concern over the speed of the outbreak, noting that Australia’s wildlife evolved in isolation, leaving them vulnerable to new pathogens. The Australian government has begun vaccinating at-risk species, including 5,000 little penguins in Victoria, while millions in funding have been allocated for surveillance and response. However, some experts, including Ariful Islam from Charles Sturt University, have criticized the rollout as too slow and stressed that vaccines are not a silver bullet for wild birds. Volunteers like Maureen Christie are helping document bird deaths along the coastline.