Gazing at it surroundings, an Oriental Pied Hornbill Anthracoceros albirostris is resting on the side of a towering tree inside Khao Yai National Park, a World Heritage Site in Thailand

oriental pied hornbill anthracoceros albirostris birds animals nesting hollow trees sunda pied hornbill malaysian pied hornbill thailand national park khao yai kaeng krachan asia southeast asia indian subcontinent nature wildlife natural habitat forests rainforests woodlands lowlands casque yellow frugivores monogamous cavity nesters plumage leaves breeding nesting cycle vines evergreen deciduos feeding regurgitating regurgitate wings tail feathers bill orchids ferns moist lowlands world heritage site unesco vegetation