Worm charming
A sea gull taps the ground with their feet to try to bring some worms to the surface.
Clever gull does some worm charming to get a snack. The official name for this is the "Seagull Dance" apparently.
Humans do a thing called Worm Grunting, for the same purpose. Ah, excuse me, that's Worm Gruntin'. https://www.wormgruntinfestival.com/ Umm, and yes, it's in FL.