Complex sentence: A scarecrow or hay-man is a decoy or mannequin in the shape of a human which is dressed in old clothes and placed in fields to discourage birds such as crows or sparrows from disturbing and feeding on recently cast seed and growing crops.
Split into simpler sentences: A scarecrow or hay-man is a decoy or mannequin in the shape of a human. It is usually dressed in old clothes and placed in open fields to discourage birds such as crows or sparrows from disturbing and feeding on recently cast seed and growing crops.