The Field Spaniel is a medium-sized dog breed of spaniel type. They were originally developed to be all-black show dogs in the late 19th and early 20th centuries and were unpopular for work as a hunting dog. However, during the mid-20th century they were redeveloped as a longer-legged dog that was more suitable to be used for field work. They are now considered to be a rare breed, and are registered as a Vulnerable Native Breed by The Kennel Club. Their fur is darker than other spaniels and they have no undercoat like most of the other field type spaniels. Their coats come mostly in solid colours with some occasional markings on the chest. They can make good family dogs and are patient with children, but can require some sort of purpose, be it hunting or agility work in order to prevent them from becoming bored and destructive. History The Field Spaniel was originally developed for the show ring by competitors who were attempting to develop an all-black Spaniel. Some of the breeding methods of those early developers were criticised; one of the first breeders of the Field Spaniel, Thomas Jacobs, said of the origin; "Much has been written and said on the purity of the breed; deprecating the means I have adopted to produce them as calculated to alter a presumed type, and frequent missiles have been hurled at me and my dogs from behind the hedge. But where is the pure bred black spaniel we hear so much about? Proof of the existence of the pure bred one (if there ever was one!) has not been forthcoming. Like most sporting dogs, they are the result of different crosses." They were unpopular with sportsmen as the dark colours of the breed did not show up in hunting conditions, and the elongated and short shape of the early breed was not very practical for moving easily through cover. The low-slung variety of Field Spaniel were developed by Phineas Bullock from dogs previously owned by Sir Francis Burdett, the secretary of the Birmingham Dog Show. Burdett was said to have owned a variety of black Cocker Spaniels. Bullock crossed the Field Spaniel with the Sussex Spaniel and the English Water Spaniel. In the 1870s, Burdett was very successful in the show ring with his variety of Field Spaniel; however, it resulted in a dog that was almost exactly like a Sussex