A nest being prepared by the female Hornbill as it shows its head a little, Great Indian Hornbill Buceros bicornis, Khao Yai National Park, Thailand

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