Willy the Sparrow

The story is about a 10-year old boy named Willy who enjoys pretending to shoot birds with a BB gun until he is turned into a Sparrow by the Sparrow Guardian. Willy becomes lost outside without knowing how to fly, and he is taken in by a sparrow named Cipur; Cipur teaches Willy how to fly in exchange for Willy teaching Cipur how to read. Later, Willy helps a group of sparrows retake their home in a barnyard from a cat. —Wikipedia