A scarecrow is a figure usually made of sticks. It looks like a human being. It is dressed in old clothes. A farmer puts a scarecrow in a field after he has planted seeds. He hopes the scarecrow will frighten birds away from the field. Some birds such as crows and sparrows eat the seeds the farmer plants. He does not want the birds to do this. If the birds eat the seeds, the farmer will not have a big crop of things to eat.