closeup of a silvery cheeked hornbill sitting on a branch in the aviary, tropical bird from africa

adult africa african animal animals aviary aviculture beak big bill bird birds black branch brevis bucerotidae bycanistes casque casqued cheeked closeup common exotic eye face feathers female gray grey head horn hornbill hornbills horned large male ornithology pet pets plumage popular portrait silver silvery sitting specie species tropical zoo zoology