The Rytidoceros undulatus, Plait-billed Hornbill, or Wreathed Hornbill, has black wings, belly, and back. The male has a buff colored head with red plumes from the nape, a naked yellow gular pouch that has a black stripe. The female has a black head and neck with a blue gular pouch. The feet are black, the bill yellow, the the iris red.
Keywordsbirds, Hornbill, Bucerotidae, large birds, omnivorous birds, Rytidoceros undulatus, Plait-billed Hornbill, Wreathed Hornbill, arboreal birds
Evans, A. H. Birds (New York, NY: The Macmillan Company, 1900)