Great Hornbill Buceros bicornis perched on a branch with its head up while the wind blows, Khao Yai National Park, Thailand

hornbills concavecasqued hornbill great hornbill fruiting tree yellow bill frugivorous frugivore bucerotidae bird in the habitat large bird buceros bicornis perch plumage foraging birds nesting bucerotiformes tropical forest nest fruits rainforest conservation jungle branch anthracoceros tree thailand southeast asia insectivore semievergreen longlived habitat national park khao yai tropical nature black casque feathers vulnerable world heritage forest massive bill great indian unesco pied burrow wings fishing indian subcontinent