"Things You Wouldn't Know If We Didn't Blog Intermittently."
13 July 2017
Puddling - updated
These are Purple Emperor and Lesser Emperor butterflies (Apatura genus) getting nutrients from the body of a dead frog. Butterflies that "puddle" at muddy spots or on scat or on carrion (as shown here) are seeking sodium, which is rarely found in plants (potassium is the principal cation in vegetation).