Dunwing was the mother of Warbeak, widowed wife of Greytail, and sister to King Bull Sparra. She lived with the Sparra tribe on the top of Redwall Abbey in the rooftop. Dunwing helped care for Matthias when he was taken prisoner by the Sparra tribe. She also helped him escape from the roost, however semi-unsuccessful it was. Excluding Warbeak, Dunwing was the only Sparra that was kind to Matthias; this is because Matthias had returned Warbeak to her rooftop home.