https://photocontest.smithsonianmag.com/photocontest/detail/butterflies-puddling-near-the-duck-river/
Butterflies "puddling" near the Duck River | Smithsonian Photo Contest | Smithsonian Magazine
Butterflies can sometimes be seen clustered on muddy riverbanks, a behavior known as
the duckphoto contestbutterfliespuddlingnear
https://miun.diva-portal.org/smash/record.jsf?pid=diva2:27074
Puddling and Rolling
puddlingrolling
https://grbarnett.blogspot.com/2006/08/leo-puddling.html
GRBarnett: LEO PUDDLING...
leopuddling