What is the name of the witch in the rescuers down under?

In "The Rescuers Down Under," the main antagonist is a poacher named Percival C. McLeach, and there isn't a witch character in the film. The story focuses on the rescue of a young boy named Cody and his efforts to save a golden eagle from McLeach. The film features characters like Bernard and Bianca, who are members of the Rescue Aid Society, assisting in the adventure.