What is that breed is? Unknown breed in Europe. Koolie can looks like Border Collie or Kelpie and that is reason why so many not recognice that breed. Now, we have under fifty koolies in Europe; Finland, Norway, Switzerland, Germany, Poland and Denmark. My both koolies have come from Australia, Hunterslea Koolies (Enid Clark) and Tjukurpa Koolies ( Kerrie Challenger). Tjukurpa Li is solid black male and he is seven years old, Hunterslea Dawn is redwhite tri and she is two years old. The koolie vary from 40 to 60 centimeters in size and are a contrast of coat, colour and body type, althought they are merled coat pattern.
Coat and colouring
The Koolie coat ranges from short/smooth. Colours can be ''SOLID'' ( all one colour black or red/chocolate this inclutes Koolie who are cryptic merle: carry the merle gene but do not display it obviously, ''BI'' (black and white or red and white , ''TRI'' (solid red or black, whit white markings, normally whit brown points), ''TRI MERLE'' (same description but merle), ''MERLE'' (grey,black,red/chocolate or white undercoat with large splashes of darker colourings of red/chocolate for red merles or black , grey for blue merles).
The median longevity of koolies is about 18 years, which is a typical lifespan fotr this breed. Koolies have a diverse gene pool and so do not suffer from the many genetic problems found in recognised breeds the merle for which the koolie is most recognised By can and does produce whid blind and deaf pups. My both koolies are health tested and they not carrying merle or dilute genes.
The Koolie's ancestors were the smooth coated blue merle Collie (imported from Britain in the 19th century) and the Black and Tan Collie from the Highlands of Scotland; these were the same type imported by Thomas Hall for the creation of his Heelers. The Koolie is believed to be descended from the same Collie types that were brought to Australia for the kennels of Thomas S. Hall (an originator of the Australian Cattle Dog breed); some believe that they could be direct descendants of Hall's dogs. While some believe the 'German Coolie' to be descended from the 'German Tiger', a European herding dog, there is no genetic or even anecdotal evidence to support this claim. A more plausible theory is that these dogs were used by German immigrants in South Australia who, unable to correctly pronounce 'collie', referred to the dogs as 'coolies'. Others have noted strong similarities with the Australian Koolie and the Welsh Collie, another British herding subtype.
According to older Koolie breeders personal records, from diaries and photo albums the Koolie has been around for over 160 years. During the industrial era some bloodlines were influenced by Kelpie and Border Collie, as explained by one grazier in Western Australia, "You bred from the good workers which were around and Koolies were not always to be found, so you bred to the next best worker that was and this was either the Kelpie or Border depending on the region you lived and the stock you worked".