Dromornis is a genus of large to enormous prehistoric birds native to Australia during the Oligocene to Pliocene epochs. The species were flightless, possessing greatly reduced wing structures but with large legs, similar to the modern ostrich or emu.

The late Miocene Dromornis, from Alcoota Station in the Northern Territory, weighed up to 500kg and stood over three metres in height, making it heavier than the Giant Moa of New Zealand and taller than the Elephant Bird of Madagascar.

Dromornis is a genus of fossil flightless birds. It lived in Australia from the late Miocene to the early Pliocene. This means early humans never met this animal. Dromornis had a huge beak and jaw capable of great force. It did not have the typical beak and claws of a carnivore, and its life style is not certain.

Dromornithidae, known as mihirungs (after Tjapwuring Mihirung paringmal, "giant bird") and informally as thunder birds or demon ducks, were a clade of large, flightless Australian birds of the Oligocene through Pleistocene epochs. All are now extinct.

Dromornis planei was a massive bird with a formidable bill. It belonged to a uniquely Australian family of extinct flightless birds, the dromornithids (mihirungs). Because of the close relationship between mihirungs and ducks, Dromornis planei has been nicknamed the 'Demon Duck of Doom'.

Mar 26, 2021 · Back when mega wombats, sheep-sized echidnas, and marsupial lions roamed the ancient lands of Australia, there also lived a gigantic flightless bird. Known by some as the 'demon duck of doom', Dromornis stirtoni is described by paleontologist Trevor Worthy as an "extreme evolutionary experiment".

Mar 25, 2021 · Researchers from Flinders University in Australia discovered through a fossil CT scan that the skull of the large extinct Dromornis stirtoni had a large skull with very little space for a brain.

Jan 4, 2023 · One was Dromornis stirtoni, nicknamed the thunderbird. It lived in the late Miocene period of Australia, about 8 million years ago. Another, Vorombe titan, lived far more recently in Madagascar,...

The Pelagornithidae, commonly called pelagornithids, pseudodontorns, bony-toothed birds, false-toothed birds or pseudotooth birds, are a prehistoric family of large seabirds. Their fossil remains have been found all over the world in rocks dating between the Early Paleocene and the Pliocene - Pleistocene boundary. [1][2]