Urchin and the Raven War (The Mistmantle Chronicles Series #4)

The inhabitants of Swan Isle are in great danger--their home has been taken over by bloodthirsty ravens. The brave animals of Mistmantle rush to the aid of their friends. The vengeful ravens are powerful and won't stop until they hunt down and destroy every creature on the island. Only by using all of their courage and cunning will Urchin and his friends stand a chance to preserve life as they know it on their beloved home.