Family Hornbills (Bucerotidae)


Wreathed Hornbill (Rhyticeros undulatus)


French: Calao festonné German: Furchenhornvogel Spanish: Cálao gorjinegro
Other common names: Bar-pouched Wreathed Hornbill

Buceros undulatus


, 1811,



Has in the past sometimes been treated as conspecific with R. subruficollis. N mainland population described as race ticehursti on basis of larger size, and smaller Bornean birds as aequabilis, but variation apparently clinal and racial separation unwarranted. Monotypic.


S Bhutan and NE India E to Vietnam (N Annam), and S to Sumatra, Borneo, Java and Bali, including several intervening offshore islands.

Descriptive notes

75–85 cm; male 1680–3650 g, female 1360–2685 g. Large, black hornbill with short white tail. Male has crown and nape dark red-brown, head and neck to upper... read more


A repeated, short, double yelp “coo-cuk”, given both when perched and in flight. Also a variety of... read more


Extensive tracts of primary evergreen forest, mainly among foothills but up to 2560 m; extends into... read more

Food and feeding

Mainly fruit; also small animals, especially when breeding. Fruits of at least 30 plant genera recorded; proportions of figs and lipid-rich... read more


Lays in Apr–Jun in India, in Jan–Mar elsewhere, extending to Jun–Sept in Borneo and Java. Nest in natural hole 18–... read more


No regular movements, but ranges widely in search of fruiting trees, even crossing between islands... read more

Status and conservation

VULNERABLE. CITES II. Still locally fairly common in a few areas across its wide range, which includes several large reserves and at least seven national parks, e.g. Khao Yai... read more

Recommended citation

Kemp, A.C. & Boesman, P. (2019). Wreathed Hornbill (Rhyticeros undulatus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 23 July 2019).