TestDogs on trial Cosmo Male Shepherd Cross4 years old Diti Female Shar Pei/Staffy cross8 years old Dixie Female Boxer X3 years old Nate Male American Bulldog X6 years old Cindy Lou Female Mixed Breed5 months old Doug Male Heading Dog X1 year old Willa Female Huntaway X1 year old Jess Female Collie x4 months old