Monarch Migration News Sep. 14, 2007    Name _________________ 

This map shows where monarch roosts have been spotted so far this fall.

• Look at the pattern.

• Notice the areas that are circled in red.

Then answer the questions below.

Location of
Monarch Butterfly Roosts

Describe what you see. How are the regions circled in red different from surrounding areas?

What could be causing these differences? List as many reasons as you can.

Now make your own hypothesis. What do you think could explain this pattern?