The Peacock Princess(Kong que gong zhu)

Prince Zhaoshutun stumbles across a gathering of magical women who can transform into peacocks, and is enamored by one in particular named Nan Ma Na Well. When a bird of prey threatens one of the peacock, he kills it using a bow and arrow. With the help of a lake goddess, the prince declares his love for Nan Ma Na Well and she agrees to marry him.