Books in the Flippy and Flappy series

The Happy Adventure of Flippy and Flappy is the uplifting story of two birds, who live with their friends in the forest, when one day a strange sound emerges from the woods. They venture out on an exciting road trip to find the source of the mysterious howl. On the way, they learn about the world, make new friendships, help out everyone they can and most importantly stay happy and have a good time.