What was Nyyrikki responsible for?
He helped with finding, not with driving: he notched trail markers into trees, set marks on ridgelines and laid spruce trunks as bridges over bog. Hunters invoked him to find path and hunting ground in unfamiliar terrain, herders for the safe cattle path; driving the game towards the hunter was the task of his sister Tuulikki.
Why does a god bear the feminine name ending -kki?
The ending -kki is feminine in Finnish, and almost identical names such as Myyrikki denote a daughter of Tapio. Research explains this through the formulaic character of the rune songs: the name had to fit the metre and the alliteration, the gender assignment followed the respective song; Lönnrot finally fixed the role of the son in the Kalevala.
Is the epithet Pinneus an ancient figure?
No. Pinneus, also Pinneys, is an Ostrobothnian name form of the ‘son of Tapio’ from bird-hunting songs, not a Greek or Latin name. The occasional association with the biblical Nimrod is considered unfounded in research.