Parents need to know that kids will be drawn into the detailed illustrations, and empathize with the forlorn fowl. Positive messages about acceptance abound, and there's nothing here that kids can't handle.
Positive messages:Other farmyard creatures (and the humans) are cruel to the duckling.
Violence & scariness:Hunters shoot at a flock of geese, and a hunting dog confronts the duckling. The duckling vows that he would rather be killed by the swans than suffer any more cruelty.
Beautiful. This is an amazing story with a great message! Plus, if you like it then you should go see the musical, HONK! (which I'm in, by the way...) with awesome songs and the same message! Hehe! ;-)