17 Fun And Fascinating Butterfly Facts For Kids So Ive never seen this shaking before. This male is about 4 hours after eclose. Was walking on the ceiling and flapping wings normally. , Flew onto leg and shook a while. Later flew off and onto Womens Garter Belts Macy's 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 wings to warm up in cold weather