How to Lure a Dragon

How to Lure a Dragon is a side quest in Dragon Age: Inquisition.
 * Frederic wants to concoct Dragon Bait. He has almost everything he needs, save for two rather specific ingredients.

Acquisition
The quest is acquired after completing Frederic's Livelihood, when Frederic talks more about his research topic.

Walkthrough
Find the necessary ingredients:
 * Phoenix Tail Feather
 * Quillback Intestines