My Thief has a Lesser Hyru, that was given to her over 7 years ago, right after they came out... My thief has never had Taming, or Bushido... yet she has it bonded to her...
It doesnt listen to her and she cant ride it, but it is bonded...
Not sure if thats what your looking for, but it is a lil strange that my Thief can own it..