Baiting a Wyvern

Baiting a Wyvern is a side quest in the Mark of the Assassin downloadable content for Dragon Age II.

Baiting a Wyvern
Upon arriving at Chateau Haine, you will take part in a wyvern hunt. To draw out the alpha wyvern, you will need to find five items that are just off the main path in both hunting grounds areas to use as bait. Once you collect them all, head to the clearing where you can place the bait. In order to get the achievement/trophy  You HAVE to choose to use all of the items at once. Any other option will not work. Once the wyvern is dead, the achievement/trophy will unlock. Listed below are the locations of all five baiting items.

Hunting Grounds West:

 * Dragonling Corpse - When you enter the Hunting Grounds, take the first set of stairs up to the right. At the top will be a group of dragonlings and two dragons. After you kill all of them, go to the highlighted dragonling corpse and interact with it to take it.
 * Blood - After fighting the dragons, take the right path down the hill. If you pass by an altar on the right side, you're going the right way. The blood will be out in the middle of the path. Interact with it to collect some.
 * Mating Call - Once you're back on the main path, you will encounter a hunting party in your path. Shortly after there will be a second hunting party. Just before them, there will be a path to the left that is shown on your map. Go up the path and you'll hear a wyvern mating call. Hawke will ask Tallis if that can be recreated.

Hunting Grounds East:

 * Halla Corpse - When you arrive in the eastern part of the hunting grounds, take the path off to the right. You'll come to a large clearing where you'll have to fight some ghasts. The halla corpse will be on the left side of the map near a large rock and some trees.
 * Wyvern Dung - The eastern part of the hunting grounds has a lake that you walk along to reach the wyvern. In a small clearing, there will be a large steaming pile of wyvern dung just sitting there. Pick it up for the last bit of bait.