Southern White Rhinos (Ceratotherium simum), mother with calf walking in front of her, and with a cattle egret (Bubulcus ibis) riding on her, at Rob Ferreira Nature Reserve (today Christiana All Seasons Resort) watched by cattle egret (Bubulcus ibis), Christiana, North-West Province, South Africa, on 1995-03-01. Photo taken by Peter Dollinger, Zoo Office Berne.
