Step 2:: A Tempting Treat  

Next you're to capture Captain Redspit's pet griffon, Blacktalon. You'll need some special feed... it's in a cave down the western slope from The Green Overlook.

1. The feed is a spiced chokidai, which are chokidai corpses in the aforementioned cave at 2805, 41, 901 Copy . Picking one up didn't break my stealth.
2. After you get the spiced chokidai, use it to distract Blacktalon, then rein him in. He's at 2820, 65, 961 Copy , terrorizing a chokidai.
3. Get close to Blacktalon, activate the spiced chokidai, and while Blacktalon is interested in it right click him to rein him in, an automatic quest update.
4. Return to Standard Ku`uul.