Butterflies Taste With Their Feet! NWF Ranger Rick How do butterflies fly? Australian Butterfly Sanctuary How Butterflies Work HowStuffWorks Why Do Butterflies and Moths Have Such Detailed Wings? Why do moths vibrate their wings? Ever notice a monarch butterfly vibrating its wings? This isn't just random behaviorit's a survival strategy called Shivering. Especially when temperatures drop, monarchs vibrate their wings to generate heat and warm