Did you know Monarch butterflies shiver their wings to stay warm? When temperatures drop, these delicate pollinators vibrate their wings rapidly in a behavior called shivering. This tiny motion generates heat, helping Pollinators Sprout: The Des Moines Urban Youth Learning Garden at Drake University Q: Why are my butterfly's wings shaking? ANSWER: All insects are coldblooded unlike birds and mammals that maintain a constant high temperature. A butterfly vibrates its wings to increase the metabolic About Monarch Butterflies