A huge flightless bird of hill and montane forest; occasionally in lowland rainforest, especially where other cassowary species are absent. The smallest member of the family. Plumage loose and black in adults, brown in juveniles. Adults have a bright blue neck with a red patch on the lower nape. Also note the low, rounded casque. Very secretive and seldom seen. Forages for fallen fruit on the forest floor. Similar to other cassowary species but smaller in size, with lower casque, lacking wattles and does not normally co-occur.