Book Ends: The first time the Bagges meet the Scarecrow, he's swarmed by crows. One of their last interaction with him, he's also swarmed by crows.
Freudian Excuse: At his lowest, the Scarecrow reveals to Muriel that the reason he's so obsessed with being scary is because he comes from a long line of scary scarecrows.
Irony: The climax reveals that the Scarecrow is more afraid of the crows than they are of him.
