Medium-sized, dark megapode with paler head. The Nicobar megapode has an omnivorous diet. Some workers have considered the species to be subspecies of the dusky megapode ("Megapodius freycinet"). The pile-builder megapode ("Megapodius molistructor") is an extinct species of megapode. Progura is an extinct genus of megapode that was native to Australia. In New Caledonia, the giant megapode might have survived into historic times. Eggs previously assigned to "Genyornis" have been reassigned to giant megapode species. They feed on megapode eggs and on fish, often emerging from the bush. The orange-footed scrubfowl ("Megapodius reinwardt") is a small megapode of the family Megapodiidae. The Micronesian megapode is a stocky medium-sized bird that is mostly dark brownish-black in appearance. Megapode eggs take from 49 to 90 days depending on the mound and ambient temperature.