Seen preening its feathers and left wing while perch within the tree, Great Indian Hornbill Buceros bicornis, Khao Yai National Park, Thailand

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