This is obviously a song which has been influenced by the folk process during its long life.

An uninformed observation would be that "fishing and fowling" would probably have gone together in an early version, in an era when many people might have supplemented their rations with 'the bounty of the land.' Most people who did one of these would likely also do the other.

"Hurling and bowlng" would seem to go together, and would be the appropriate 'set' for a society in which recreational(?) activities were common. Perhaps implying a more "urban" populace.

Other "pairs" that have been mentioned seem somewhat a mixed bag. Perhaps this particular phrase is a clue to the time and locale in which a version originates.

John