Pixie Dust How thin, delicate butterfly wings keep from overheating Why do monarch butterflies shiver? They do this to increase their body temperature by warming their muscles so they can take flight., Photo Courtesy of Community Member Julie Bthanks Julie! Butterflies vibrate their wings for an array of reasons: to regulate their temperature, to ward off predators, or to strengthen their wings. We learn so much about our environment when critters come Watching a butterfly's wings vibrate in slow motion provides an amazing opportunity to stop, look and breath as nature's canvas provides its own live mosaic. It's a moment to appreciate the visual