Quote:
German ShepHERDS were bred to HERD sheep.
LGD's are bred to GUARD livestock
Mutts are bred because people are irresponsible.
Calling a mutt an LGD doen't make it one.
They are not "guarding" instinctively. They are defending territory.
If a HOUND kills a rat, it's not a TERRIER
If a TERRIER chases a rabbit, it's still not a HOUND
If two roosters fight, they aren't magically Game Birds.
A mutt is NOT a true LGD no matter how many critters he barks at.
The term LGD has a definiton, and "yard dog" isn't one of them.
You need to get your facts...........German Shepherd , were use by SHEPHERDS to guard their flock from Wolvies , and yes to herd the sheep also.
To all your list above a LGD is not a BREED or type of DOG...rat terrier is a breed not a job ,the rat killing was his job.,and yes other dogs can do his job. Just like a mixed breed can herd sheep.
More than one breed are known to do the job of guarding livestock. Nobody call it a Akbash ,or Great Pyrenees, just that it does job as livestock guarding.