What specific aggressive feeding behavior leads to the genus name Stercorarius relating to excrement?

Answer

Kleptoparasitism

The etymology stems from the group’s noted propensity for kleptoparasitism, which involves aggressively harassing other birds until they drop their catch for the skua to claim.

What specific aggressive feeding behavior leads to the genus name Stercorarius relating to excrement?
birdanimalScientific nameSkua