If on the island they are most common in the volcano this means you don’t need a trap because you can either fly up to the rim of the volcano and shoot tranqs from there which is the easier option or block of the one entrance to the volcano using metal dino gateways and shoot from the other side. Aldi if there’s any unwanted things in the volcano just fly them into the lava to kill them. :) plz up my first tip . Oh and make sure you have at least 250 narcotics and 150 trans darts 👌