Lights out

"A map made of stars guides the sparrows way. . . . When they reach the city, light pollution masks the map and confuses the birds. One sparrow becomes seperated from the flock. A girl rescues the lost sparrow and decides to take action. She rallies a group of friends, and together they encourage people all over the city to help the sparrows. . . . Will the city be ready by the time the flock returns?"--Provided by publisher.