Great Hornbill Buceros bicornis two individual perched while the on the left looks around the other preens and they both kissed, Khao Yai National Park, Thailand

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