Noble megapode Noble megapode The noble megapode ("Megavitiornis altirostris"), also known as the deep-billed megapode, is an extinct, flightless, giant stem-galliform bird that was endemic to Fiji. Originally thought to be a megapode, more recent morphological studies indicate a close relationship with "Sylviornis", in a clade outside of the Galliformes crown group. It is likely that it became extinct through overhunting shortly after the colonisation of the Fiji Islands by humans. The genus is monotypic, with the generic name "Megavitiornis" derived from the Greek "mega" (great), "viti" (Fiji), and "ornis" (bird). The specific epithet "altirostris" comes from Latin "altus" (high or noble),
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