A McNab Dog is NOT a Border Collie. 

Gary Williams is a cowboy, an author, and a horse and stock dog trainer, but he's not a geneticist. So when he went looking for pure McNab dogs to be the foundation of his breeding program, he kept an eye out for a single characteristic that told the dogs' genetic histories as accurately as any DNA test -- the unique McNab working style. Welcome to Farm Dog.
Farm Dog is presented by Goats On The Go® and hosted by its founder, Aaron Steele.
Gary's website: garywilliamsmcn...
Gary's book: Lessons from the Range -- Adventures of a Working Cowboy
Creative Commons Music by Jason Shaw on Audionautix.com