Seen throwing dirt and materials out of its nest in preparation for its nesting season, Great Indian Hornbill Buceros bicornis, Khao Yai National Park, Thailand

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