I think we all love butterflies for their beauty and the fact that they signal summer. We usually feel lucky to see a butterfly (even if we don't like the caterpillars eating our cabbages) and they never get any less fascinating. And because of pesticides and changes in land use many are now becoming endangered.
So the Butterfly Association's idea is to raise our awareness of butterflies and how important they are as pollinators and their place is Nature's rich pattern. Their website has lots of ideas for things which both children and adults can do.
Find more information over at www.forbutterflies.org/gardening/butterfly-awareness-day-june-4/.