Is it a Kangaroo?

Every spring Sama and Shadi’s family organize a trip and picnic to the prairies/desert to dig up and collect truffles that grow after rain and thunder. It had become a family tradition to compete with their relatives to see who would collect more truffles. But something strange happens when the truffles start disappearing from their holes. Strange footprints are noticed on the sand. What could it be and what is the secret behind the disappearing truffles?