Hejkin is the old Urikan word for abomination, because they apparently as such.
With distorted, human-like heads clawed hands, furry legs and the feet of birds, Hejkin are an abnormal mix of features. Not to mention they border on insane with a primative, tribal cultures that relishes in raiding and bloodlust.
They appear to speak some form of gibberish language though have been done to speak Dwarven.
Evidence shows that they are particularly hostile to magic users.