6' foot tall man-killing flightless emus cassowaries been warned to watch out for cassowaries Beware The Cassowaries telegraph.co.uk The article. been warned to watch out for cassowaries Source dangerous The article. Source Telegraph Big and powerful birds The article. telegraph.co.uk 6' foot tall man-killing flightless emus been warned to watch out for cassowaries Source The article. said Kate Jones telegraph.co.uk