Pile-builder megapode he named "Tetrao australis". Considering that all "Tetrao" species have feathered legs, Anderson's bird might well have been a megapode. Pile-builder megapode The pile-builder megapode ("Megapodius molistructor") is an extinct species of megapode. The subfossil remains were found by Jean-Christophe Balouet and Storrs L. Olson in the Pindai Caves of New Caledonia. Its remains have also been found on Tonga. With a weight of 3.5 kg, "M. molistructor" was heavier than all existing "Megapodius" species. On Tonga, it was the largest ground-dwelling bird species. The fossil material consists of a left tarsometatarsus, a complete left scapula, a half right scapula,
Nicobar megapode of the dusky megapode ("Megapodius freycinet"). The exact island from which the original type specimen came was not known and a later specimen from Trinkat Island, described as "Megapodius trinkutensis" is now considered to be indistinguishable from the nominate subspecies. In 1901, W L Abbott collected specimens from Little Nicobar which were described in 1919 by H C Oberholser as a new subspecies "abbotti", distinguished by its darker brown plumage. The species is found only in the Nicobar Islands. This range is so well separated from the main megapode distribution (especially of the genus "Megapodius") that in 1911, it was