While Chirp, Squawk, and Tweet are searching for the world's biggest waterfall, their boat springs a leak, and they use a cork to plug the hole. About the Series Each Chirp TV tie-in book is based on an episode of the new Kids' CBC television show and invites readers into a world of adventure where Chirp, Squawk, and Tweet work together to solve problems, using everyday objects and their limitless imaginations. AGES: 3-7