Taming can be sometimes hard. What I figured out that works almost perfect every time and decent level bonus.

1. Bola

2.knockout

3.feed at least 80 raw meat, 200 narco berry's, 15 narcotics.

4. If that doesn't work by the time he is about to wake up.

5.hit him in the (Body) with tranq arrow from crossbow.

6.important make sure not to shoot in the head and make sure to wait till he is almost conscious otherwise it may kill the little winged friend.