New Zealand reported its first case of the deadly H5N1 bird flu after a migratory seabird found on a beach near the capital, Wellington, tested positive, Biosecurity Minister Andrew Hoggard said on Wednesday. The case in a brown skua seabird comes after the virus was detected last month in Australia, the last continent to report the virus. The virulent H5 strain has spread through wild bird and mammal populations since 2021, killing millions and infecting poultry and dairy farms as well as some farmworkers.