Wreathed Hornbill

Wreathed Hornbill Rhyticeros undulatus ranges from northeastern India to the Greater Sundas. In China, it has been reported exclusively in western Yunnan (Yingjiang). Occurs in forests with large trees, where it lives in canopy. Often in small flocks, growing larger in the presence of fruiting trees. Monotypic. Male has dirty white head, neck, and breast and reddish crown center running to neck. Rest of upperparts and underparts black; tail white. Orbital skin red; iris pale red in male, darker in female; gular pouch yellow with a black streak on each side. Bill yellow, corrugated on base; small casque also corrugated. Female plumage all black, except white tail; gular pouch blue; female also smaller (including bill, casque, and pouch). Female rufous-necked hornbill has deep ridges on maxilla only, a red gular pouch, and blue orbital skin. Feet black or grey. Juvenile has no casque and a smooth bill, and streak on gular pouch fainter. Harsh, two-syllable bark. ​​— Craig Brelsford

ACKNOWLEDGEMENTS

Daniel Bengtsson served as chief ornithological consultant for Craig Brelsford’s Photographic Field Guide to the Birds of China, from which this species description is drawn.

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