dwarf collie does not exist. But delusions are inevitable and we must dispel them.
There is a breed very similar to collie. She seems like a miniature of our Scottish shepherd. The truth is that although this dog is different from the coarse collie, it is also a Scottish shepherd - one of its five types that we called in the description of a collie breed.
The name of this breed is Shetland collie or sheltie. She bred on the Shetland Islands, which lie north of Scotland. The climatic and natural conditions of this archipelago are so severe that its inhabitants find it extremely difficult to provide themselves and their livestock with food. They partially solved this problem by reducing their pets in size. Thus, they can survive with less feed. No matter how charming the Shetland Collie (Sheltie) is, her standard is not the same as the coarse Collie. No matter how much the baby looks like its bigger relative, she is not a dwarf collie at all. So, the last secret connected with the Scottish Shepherd family is revealed.
There is no consensus in the exact definition of the pioneers of the Shetland Sheepdog (Sheltie) - they were probably long-haired Collies, but it is possible that Icelandic yakkas who came to the islands from industrial whaling ships. Her main qualities and abilities can be described as true cheerful clever: easy to learn, livable both with small children, and with other pets, with a calm and wary attitude to strangers.
Sheltie - the best choice of dogs for residential conditions, where it does not suit the mayhem.