Wintering South of the Border
Many Species Share a Small Area

The monarch butterfly is not the only species that migrates south of the Mexican border each fall. Hundreds of species of birds, insects, bats, and other animals migrate from the large U.S. and Candian breeding area to smaller wintering grounds.

How small are those wintering grounds? Let's start with a global view >>

How many Mexican free-tail bats can you see?

Photo: Eve Pranis
National Education Standards >>