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How High Can You SEE a Monarch?
Dr. Brower’s Flight Height Experiment

It's hard to know how high monarchs fly during migration because it's so hard to observe them. They disappear from view!

Dr. Lincoln Brower wondered how high he could see a monarch in flight overhead. So he went outside in the big backyard of his college campus to find out.

What simple experiment could you design to answer this question? Have a class discussion. Then look at the pictures of Dr. Brower’s experiment.

Dr. Lincoln Brower has studied monarch butterflies for over 50 years. 

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