The Jacairn is not a purebred dog. It is a cross between the Cairn Terrier and the Jack Russell Terrier. The best way to determine the temperament of a mixed breed is to look up all breeds in the cross and know you can get any combination of any of the characteristics found in either breed. Not all of these designer hybrid dogs being bred are 50% purebred to 50% purebred. It is very common for breeders to breed multi-generation crosses.
American Canine Hybrid Club = Jacairn
Designer Dogs Kennel Club = Jacairn
IDCR = International Designer Canine Registry® = Jacairn Terrier
Designer Breed Registry = Jacairn
Jack, the Jacairn (Jack Russell / Cairn Terrier hybrid) full grown. "Jack is a wonderful, fun-loving dog. He is not aggressive and gets along well with every dog and person he meets. He loves to play and is sometimes difficult to discipline because in the middle of scolding he will wag his tail and try to play with you. Jack is a great, kind dog!"
ACHC, DDKC, DRA, IDCR, DBR