komondor Hungarian breed of large powerful shaggy-coated white dog; used also as guard dog
old english sheepdog,
bobtail large sheepdog with a profuse shaggy bluish-grey-and-white coat and short tail; believed to trace back to the Roman occupation of Britain
collie a silky-coated sheepdog with a long ruff and long narrow head developed in Scotland
border collie developed in the area between Scotland and England usually having a black coat with white on the head and tip of tail used for herding both sheep and cattle