with this plan in mind, the scarecrow cried out in a bold voice: "i demand to know what you have done with dorothy and the wizard!" when he had witnessed the peculiar manner in which the gaudily plumed birds had assumed the shapes of his human friends in the garden, the scarecrow had first suspected that these creatures were responsible for the disappearance of dorothy and the wizard. then the sight of dorothy's magic belt about the waist of the big woman had convinced him of the truth of his suspicions.