Seen tossing materials from inside the nest as it cleans it, Great Indian Hornbill Buceros bicornis, Khao Yai National Park, Thailand

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