Fly with an argi along the edge of the redwoods and look at the trees below the treetop. You can actually see them well and check the level with the telescope.

If you have one you like, land near the side of the tree and shoot down with the shotgun.

Then collect it with the argi and throw it into a trap.

Since he prefers to eat cooked meat, he can be tamed very well with fillet. Just take enough narcotics with you.

The trap should not be too far away from where you collect it, just quickly build one out of supports nearby. Otherwise he will tear the argi apart in the air.