What dual history is encapsulated by the combination of the genus name and the species name?

Answer

Its aggressive feeding habits (genus) and its local identity (species).

The name combination encapsulates both its aggressive, food-stealing nature indicated by the genus name (Stercorarius, based on behavior) and its specific identity within that group derived from local vernacular (skua).

What dual history is encapsulated by the combination of the genus name and the species name?
birdanimalScientific nameSkua