Bob, I notice that your source there refers to a dog being used as a "guard" which differs from the ability to "herd." I was wondering if anyone had an information on when this role changed and exactly what type of dog may have been involved. Most of the earlier domesticated breeds used were what we now refer to as "sight hounds" (Pharoah, Saluki, Deerhound) and share some resemblance to the herding breeds, ie; long muzzle, less pronounced stop, higher eye sockets, high aspect ratio chest/stomach.

Rolfy, any ideas?

Spaw