The Border Patrol is seeing a dramatic shift in the type of migrants who come across the busiest places on the U.S.-Mexico.

The Amherst County Sheriff’s Office received a tip Thursday morning, and Master Deputy Amanda Aguirre with animal control rescued the chihuahua mix from one woman.

COVID-19 rates are plunging among migrants crossing the border from Mexico as the Biden administration faces a decision to end or extend sweeping restrictions on asylum that are aimed at limiting the virus’ spread.

For nationalities that don’t need a visa, Mexico can be the ticket to seeking asylum in the United States.