Hanging on the mouth of its nest while feeding then flies away to the left, Great Indian Hornbill Buceros bicornis, Khao Yai National Park, Thailand

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