sentaro obeyed wonderingly . the crane grew large enough for him to ride on it with comfort . it then spread its wings , rose high in the air , and flew away over the mountains right out to sea . sentaro was at first quite frightened . by degrees he grew accustomed to the swift flight through the air . on and on they went for thousands of miles . the bird never stopped for rest or food , but as it was a paper bird it doubtless did not require any nourishment , and strange to say , neither did sentaro . after several days they reached an island . the crane flew some distance inland and then alighted .
it was a paper bird .
why did the bird not need to stop for nourishment ?
why did the bird not need to stop for nourishment ?