The Order Dinornithiformes consisted of the large, flightless birds known as moas, which were native to New Zealand. These birds were part of the ratite group and included several species ranging from medium-sized to enormous, some reaching over 3 meters in height. Moas were herbivorous, feeding on leaves, twigs, and other plant material, and had no wings, relying entirely on their strong legs for locomotion. They played a significant role in New Zealand’s ecosystems but became extinct by the late 14th century, primarily due to overhunting by the Maori and habitat destruction. Dinornithiformes are an important example of island gigantism and the vulnerability of isolated species to human activity.