Sonja Headings professional dog breeder and dog show handler of Summervlile, MO. Sonja Headings has been a professional dog breeder for over 15 years and offers the finest quality healthy puppies. Sonja Headings is located in the beautiful open countryside of rural Missouri. All of our wonderful puppy's Mothers and Fathers have been screened and certified free of one or more genetic defects. All dogs and puppies sold are certified by licensed veterinarians as healthy and up to date on all vaccin