By Quetzalcoatl.Pyroelf 2011-10-31 09:48:21
If it is anything like all the other NMs in glacier I have killed, you need to kill his job type mobs in an area to trigger pop.
So if its a quadav ranger, you need to farm up rangers a while to force him to pop.
Which spot exactly? Not really sure, never hunted specific NMs in glacier enough to tell besides the ones I ended up fighting in my camp which helped me learn it was all lotto.