Story about duck

Suddenly I just remembered a story about ducks,it was a TV program that I watched while I was in China. In the spring time a wild duck fell in love with a local tamed duck(white ones which could not fly).And then they have babies,they looked like a very happy family,but the weather changed so quick,it is autumn and all the other wild ducks were prepared to fly to the south. This wild duck also has to go,but he waited and hoped that his wife-the tamed duck can fly with him,she practise almost everyday to fly....It was almost winter,the wild duck has to go,the tamed duck still could not fly,so he has to fly away with their children(luckily their children could fly)...After they left,the tamed duck just got very depressed and refused to eat till her death.

Oh! romantic duck story! And it was really happened because someone took the video of the ducks' life... That is why I always remembered it.It is not only human who knows love and family,also these simple birds...