Nation Florida man attacked and killed by his cassowary, the ‘world’s most dangerous bird’ April 15, 2019 N'dea Yancey-Bragg, USA TODAY Comments Off on Florida man attacked and killed by his cassowary, the ‘world’s most dangerous bird’ A 75-year-old man in Florida was killed by a cassowary, a large, flightless bird native to Australia and New Guinea.