Recently, I have noticed numerous 'swarms' of butterflies, many of which have been clustered on damp ground near trails and streams. In various venues near fishing spots and hiking trails, I have seen swallowtails of various varieties, cabbage butterflies, and those small, light blue butterflies (Cupido amyntula), often in groups of 8 or more sitting in close proximity to one another. The sight near fails to delight me.
I captured these swallowtails with my smartphone while at Liberty Reservoir in Eldersberg. I hope you enjoy the photo.