If someone is running the war, this is and the feathered cap are the common drops off of the Owler "boss" mob. When running the war I typically see this drop 8 out of 10 times.
My Rogue got to vulture loot this at level 12 when a bunch of high levels were working the Hollowshade zone war and didn't want this drop. A decent damaging weapon for a newbie rogue. I recommend people to look for groups working the war, and then find out if you can loot unwanted stuff. You can get some nice gear at low levels that way. And since the drops are close to the Shar Vahl zone at the outpost area, it's easy and safe to get to for low lelevls.