Sheepdog trials are competitive events where trained dogs demonstrate their herding abilities. Handlers guide their dogs to manage a group of sheep through various tasks, such as gathering, driving, and penning. The trials test the dog's skill, intelligence, and responsiveness to commands. These events often take place in open fields, with judges evaluating the performance based on criteria like control, precision, and the dog's ability to work independently. Border Collies are among the most popular breeds used in these trials due to their natural herding instincts and agility.