Cassowary (Casuarius unappendiculatus) Most Dangerous Bird

Cassowaries are the only members of the family Casuariidae and belong to the order Casuariiformes, which also includes the emu. Three species (counted by some experts as six), each with several races, live in habitats that span parts of Australia and New Guinea. The cassowary has been known to kill human beings with slashing blows of its feet, as the innermost of its three toes bears a long daggerlike nail. The bird has been observed moving rapidly along narrow tracks in the bush, sprinting as fast as 50 km (31 miles) per hour.

Cassowaries are curious, and they do attack from time to time, but attacks on humans are relatively rare. Those attacks that do occur overwhelmingly involve soliciting food from people. One of the most recent incidents came in 2012, when a tourist in Queensland, Australia, was kicked by a cassowary off a ledge and into a body of water but remained unharmed otherwise. One of the most famous attacks (and the only one known to result in a confirmed death) occurred in 1926: one member of a group of teenaged boys hunting cassowaries was killed after a cassowary leapt upon him while he was on the ground. The bird slashed the boy’s jugular vein with its long toenail.

The Southern Cassowary is the largest member of the cassowary family and is the second heaviest bird on earth, attaining a maximum estimated weight of 85 kg (187 lb) and height of 190 cm (6 ft 3 in). It is currently the largest living Asian and Australian bird.

Females as shown here are larger and more brightly colored than the males. A horn-like brown casque, measuring up to 16.9 cm (6.7 in) high, sits atop the head. The bill can be up to 19 cm (7.5 in) long. The three-toed feet are powerful and equipped with a lethal dagger-like claw up to 12 cm (4.7 in) on the inner toe. The blade-like claws are capable of killing humans and dogs if the bird is provoked.