Just a heads up for anyone trying to vanquish Vulture Drifts. I recommend starting with the western part of this zone first (Sand Elementals & Enchanted)
Not too terribly hard but there is a Hydra patrol that patrols in a counter-clockwise patrol route. I "turned on" this patrol somewhere in the NE-E area of the zone. Gave chase (they move extremely fast) but unfortunately ran into a sand worm that had to be dealt with. This patrol runs through the middle part of the zone(counter-clockwise). I doubled back in a clockwise motion and found the patrol "hung" on a sand berm right next to Kraviec The Cursed (collector) in the eastern part of the zone just due west from the Arid Sea portal and right next to a teleporter switch.
I don't know if this patrol always gets stuck here but if it does, hope this helps anyone vanquishing this zone.
Vanquishing Vulture Drifts
Rak Orius
kuramoto
I vanquished Vulture Drifts recently and started in the same direction. I found the Hydras in the same place.
miskav
So did I, Yay for GW's Pathing =)