A migratory petrel found dead in South Australia's Coorong wetlands has tested positive for H5N1 bird flu, the 58th confirmed case in the state, arriving at a moment when this internationally significant ecosystem is already teetering on the edge of collapse. The virus moves swiftly through dense waterbird breeding colonies, threatening pelicans, swans, bitterns, and dozens of migratory species that depend on the Coorong as a sanctuary. Conservation groups are now urging the federal government to commit $200 million toward emergency wetland restoration before the spring breeding season transfo