Pedigree Breeds

Jack Russell terriers are tough, tenacious, athletic, and super friendly. This energetic dog was bred to be a working dog and still displays the cleverness that made it a highly-sought after hunting dog back in the early 19th century.
Source: https://www.petinsurance.com/healthzone/pet-articles/pet-breeds/5-Things-You-Didnt-Know-About-Jack-Russell-Terriers.aspx

The Spinone Italiano is a "dog of solid construction, robust and vigorous with powerful bone, well-developed muscles and with a rough coat." "Naturally sociable, docile and patient, the Spinone is an experienced hunter in all terrains; very resistant to tiredness, goes easily into thorny underwood, or throws himself into cold water. He has remarkable dispositions for an extended and fast trot; by nature he is an excellent retriever."

Source: FCI Breed Standard (English)

The Tibetan Spaniel is a breed of assertive, small, intelligent dogs originating over 2,500 years ago in the Himalayan mountains of Tibet. They share ancestry with the Pekingese, Japanese Chin, Shih Tzu, Lhasa Apso, Tibetan Terrier and Pug.

Source: https://en.wikipedia.org/wiki/Tibetan_Spaniel

The Whippet (also English Whippet or Snap dog) is a dog breed of medium-size. They are a sighthound breed that originated in England, where they descended from greyhounds. Whippets today still strongly resemble a smaller greyhound.

Source: https://en.wikipedia.org/wiki/Whippet

The Berger Blanc Suisse (English: White Swiss Shepherd, German: Weisser Schweizer Schäferhund, Italian: Pastore Svizzero Bianco) is a breed of dog from Switzerland. It is of the same origins as the White Shepherd and the German Shepherd Dog, and has been recognized as a separate breed by the FCI.

Source: https://en.wikipedia.org/wiki/Berger_Blanc_Suisse

The Basenji originated in the "African Congo, where they had been used as an all purpose hunter working by sight and by scent.""
Basenji "history extends back to the time of the Pharaohs and paintings in their tombs bear a similar resemblance to the breed. Gazelle like in his elegance and with a stylish, swinging stride, he is catlike in his cleanliness and has no bark which is replaced by a yodeling sound."

Source: The Kennel Club

The Australian Terrier, one of the smallest of the working Terriers, was bred to be both a helper and companion in rough times and terrain. A native dog (known as the "rough-coated terrier") and a close relative of the old Scotch dog of Great Britain (not to be confused with the present-day Scottish Terrier) are believed to have been cross-bred with a number of other breeds of British stock to produce the fast, sturdy, weather-resistant and fearless little dog that the settlers needed as they expanded the frontiers of their country.

Source: Australian Terrier Club

Medium sized and bred to cover all terrain encountered by the walking hunter, the Wirehaired Pointing Griffon has been called the "4-wheel drive of hunting dogs" as he will enter briars or underbrush without hesitation. Griffs excel equally as pointers in the field and as retrievers in the water. Their coarse double coat protects them in rough cover and gives them an unkempt appearance.

Source: AKC

The Bull Terrier is a breed of dog in the terrier family. There is also a miniature version of this breed which is officially known as the Miniature Bull Terrier.

Source: Wikipedia