 Because of their tropical origin, most of these crops were difficult to grow except in the far north of the North Island, hence the importance of Rongo in New Zealand.He was also an important god of agriculture and god of war in the southern Cook Islands, especially on Mangaia where the Akaoro marae and Orongo marae were centres of his worship; where cooked taro and human sacrifices were offered to him to assure success in battle and the fertility of land.A legend concerning Rongo flying the first kite is told in the waiting room of Walt Disney's Enchanted Tiki Room, in which Rongo is voiced by Ernest Tavares.