This is a feather from Hluthar Emberplume, leader of the Harpies. It glows in a fascinating light. Rumor has it that this light can enchant people and cause hallucinations.
This item is UNIQUE. You may not possess more than one!
If you have both the Daily and Public quests the mob(s) associated with them will drop double the required item (reducing the number of kills required to complete the task).
While he will drop two, as advertised, you can only pick up one because it is Unique.