 Using this method, accipitrids such as the golden ("Aquila chrysaetos"), wedge-tailed ("Aquila audax"), martial ("Polemaetus bellicosus") and crowned eagles ("Stephanoaetus coronatus") have successfully hunted ungulates, such as deer and antelope, and other large animals (kangaroos and emus in the wedge-tailed) weighing more than 30 kg (66 lb), 7–8 times their own mass.More typical prey for these powerful booted eagle species weigh between .The "Haliaeetus" eagles, the "Ichthyophaga" eagles and the osprey ("Pandion haliaetus"), possibly in its own monotypical family, mainly prefer to prey on fish (comprising more than 90% of food for the latter 2 genera).