My research from this book: A Field Guide to the Birds of South-east Asia by Craig Robson.
Male hornbill: White facial markings, belly and vent.
Pale yellowish bill and casque with dark markings.
All this check out !!!
Definition of Casque: an enlargement of the upper mandible.
Male hornbill: White facial markings, belly and vent.
Pale yellowish bill and casque with dark markings.
All this check out !!!
Definition of Casque: an enlargement of the upper mandible.
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