The Bird with Golden Wings

A poor little girl is rewarded with lovely gifts when she feeds a hungry bird all the rice she has. What happens when the girl's greedy, nosy neighbour hears the story and tries to get better gifts for herself? Why did the once sweet sea water turn salty? How did the learned teacher forget his lessons only to be aided by the school cook? And how did the king hide his horrible donkey ears from the people of his kingdom?