the southern caer also known as the double waddled caer is a large flightless bird native to Indonesia Papa New Guinea and Northeastern Australia standing up to 1.8 m tall and weighing as much as 154 lb it is one of the heaviest birds in the world this bird is easily recognizable by its striking blue face long neck and the distinctive Cask on its head which can be up to 6.7 in Long known for its powerful legs and sharp claws the southern calary can run at speed of up to 30 mph and is considered one of the most dangerous Birds due to its ability to deliver lethal kicks despite its fearsome reputation the CER plays a crucial role in its ecosystem by dispersing seeds from the fruits it eats