Ok so if you are on mobile, I figured out how to tame them with no violence. I put amarberries in my hotbar guessing that was like have them "out". Started following g this little guy around, and behold, his tame meter started rising!
1. Do not knock him out.
2. Feed him any berries, mejoberrys are more effective.
3. Don't let him get hungry for long time because the taming % will start dropping, so stay with him and wait until he get hungry again and feed him.