Yep, I hunted them a few years back. You will typically only find them on the exotic ranches out here. They are usually mixed in with Black Buck, Sitka, Fallow, Axis, and Whitetail.
Aoudad (when i hunted them) where always pretty weiry. They had that Whitetail sense if you know what I mean. Any little noise or if something wasn't right and they were outta there. The good thing about hunting them is they are usually in herds so you get to take your pic if you see them.
I would stay away from the YO or King Ranches unless you are looking to spend big bucks. They are prevelant and a number of smaller ranches where you won't pay as much.
Good eating too!