I went about it a bit different. My area had a ton of raptors got lucky with a couple 100isah mated pairs. Then i scoured for a lone Ravager. I would just wait for a stego or something large to take out the little ones of the pack then snipe out the nice Ravagers. Bolas worked well I did learn though you have to be ready for the second bola application.
Man I will say I love this map so far.