The Wheel on the School Spotlight
Why do the storks no longer come to the little Dutch fishing village of Shora to nest? It was Lina, one of the six schoolchildren who first asked the question, and she set the others to wondering. And sometimes when you begin to wonder, you begin to make things happen. So the children set out to bring the storks back to Shora. The force of their vision put the whole village to work until at last the dream began to come true.
It's been awhile since I read The Wheel on the School :( and I should read it again soon.