Shepherd isn't one breed but a label for dogs with herding or flock-guarding roots. In Chula Vista listings it most often points to a German Shepherd or a German Shepherd mix, though Australian Shepherds, Belgian and Dutch Shepherds, English Shepherds and crosses with Labs or Huskies also turn up. Most are medium to large, athletic and smart, with a thick coat that sheds all year.
Many are loyal and watchful, and some are reserved with strangers. They tend to need daily exercise, training and a task to focus on, and herding instincts can show up as chasing bikes or nipping at heels. On busy sidewalks and leashed trails, steady training and good leash manners matter. Because ancestry varies, size, energy and temperament can differ a lot from one Shepherd to the next.