Monarchs Forming a Roost During Fall Migration
As you watch the video, notice how hard it can be to see the roosts high in the trees. They can be hard to find, even in your own backyard! Watch the way the monarchs flash their wings as they settle into the roost. Can you find the tagged monarch in one of the clusters?

Click here to play video.

Video courtesy of Pat Swerkstrom. Footage shot at the home of Tom and Julie Murphy, Cannon Falls, Minnesota on August 23, 2009.