Facts

How High Can Butterflies Fly?

Some butterflies migrate and when doing so will quite happily fly a hundred or so meters up. It's been reported, for instance,that workers near the top of new York City's 443-metre-tall Empire State Building have seen Monarch butterflies flutter by their windows.
But that's not all. If caught in an updraught, butterflies can reach 3000 meters or more and survive.

Facts of Life, RD Asia

December 2004