Final answer:
Migratory birds required international treaties to ensure successful conservation efforts.
Step-by-step explanation:
The type of wild game that required international treaties to ensure successful conservation efforts is migratory birds.
International treaties such as CITES regulate the transportation of endangered species across international borders. The Migratory Bird Treaty Act (MBTA) is an agreement between the United States and Canada to protect migratory birds.
These treaties are important because the movement of migratory birds spans different countries, making it necessary for international cooperation to effectively protect these species and their habitats.