Butterflies are attracted to flowers. Butterflies are often associated with flowers.
But they are not just attracted to flowers.
I took this photo a number of years ago of four viceroys drinking the juices of a rotten apple.
These northern pearly-eyes are attracted to sap leaking from the bark of a bush.
This eastern tailed-blue was attracted to something else.
I have seen a photo, taken by one of my friends, which had 32 or 33 hackberry emperors all crowded on one scat.