This is an agreement with the US, Mexico, and Canada to protect all native migratory birds.

• A. United States, Mexico, and Canada
• B. United States only
• C. United States and Canada
• D. Mexico and Canada

Answer: (A)

Protecting migratory birds that move across national borders requires a framework that includes all the countries the birds travel through. The North American Migratory Bird Treaty brings together the United States, Canada, and Mexico to conserve native migratory birds and their habitats across the continent, guiding protections, hunting restrictions, and habitat programs in all three countries. This multi-country approach is why it’s the best answer: the treaty binds all three nations so species aren’t protected in one country but exposed to threats when they cross borders. Each nation implements the treaty through its own laws, ensuring coordinated conservation as birds migrate. The other options omit one or more countries, which would undermine protection across the birds’ full range.