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 Free Vibrant Butterfly Wing Image Butterfly, Vibrant, Close up Download at StockCake Amazon.com: GoolRC Light Up Fairy Wings, Moving Butterfly Wings with Lights & Music, Adjustable, LED Butterfly Wings Toy for Teens as Halloween Birthday Christmas Party Costume Princess Cosplay Dress Up : Toys 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!