Great Hornbill Buceros bicornis seen perched on a branch under the nest waiting for the female to come out, Khao Yai National Park, Thailand

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