Acquire King Reaperclaw's Horn.
The raptors of the Barrens are smarter than raptors in other lands. I think all those smarts are hiding in their horns! If so, then I could grind their horns into powder and use it to make "smart drinks." I'll make a fortune!
Here's where you come in: I want the horn from the smartest raptor around. "King Reaperclaw" leads a whole pack of intelligent raptors up on the bluffs north of Ratchet. Bring me his horn! And don't get ripped to ribbons like everyone else I've sent!