The Rhinoceros hornbill (Buceros rhinoceros) – one of the largest birds in rainforests of Asia – is the national bird of Malaysia. It is a large, cavity-nesting bird with black plumage, a white abdomen, and a long white tail crossed by a wide black band. Named for the upturned casque or “horn” that sits atop their giant colourful beaks, the males and females look alike except for their eye colour – male is red, female is white. The word "rhinoceros" is of Greek origin -- "rhino" meaning "nose", and "ceros" meaning "horn." This means that the Rhinoceros Hornbill's name could be translated to Nose Horn Hornbill. It spends its entire life on treetops.