"The Pigeon Finds a Hot Dog!" is a children's picture book written and illustrated by Mo Willems. The story follows a pigeon who discovers a delicious hot dog and is excited to eat it. However, the pigeon is soon interrupted by a curious duckling who wants to know more about the hot dog. As the pigeon tries to enjoy the hot dog, the duckling asks numerous questions and expresses its own desire for the tasty treat. The humorous interaction between the pigeon and the duckling highlights themes of sharing and friendship, making it an engaging read for young children.