ISIS has drones and is using them to organize their terrorist attacks. Shoebat.com obtained a video made by ISIS, filmed from a drone in mid air scoping the last military base of Assad in the area of al-Raqqa. After the drone observes the stronghold, ISIS fighters moved into the base with a full scale attack.
We made a video on the drone, with the clip filmed from the ISIS drone:
Its possible that they could be getting the drones from Turkey.