Collies come in a variety of shapes and sizes, although, in the US, the name is most commonly associated with the long-haired Rough Collie or Lassie dog.

The Rough Collie “is a large but lithe herder,” while the smaller Border Collie is what most people think of when they think of shepherd dogs. The Bearded Collie looks more like an Old English Sheepdog with its long coat and “shaggy dog” appearance.

Regardless of type, Collies are energetic, fun-loving creatures, although the Border and Bearded breeds generally require more exercise. The Rough Collie has a more laid-back approach to life, being “ready to go when it’s time to go, and able to chill when it’s time to chill.”

Over and above everything else, “what Collies need most is a great deal of personal attention”. They love human company and are liable to suffer from separation anxiety and become bored and destructive if left alone for too long.

Although the Rough and Bearded collies are suitable for novice owners, the “highly sensitive, independent thinking” Border Collie requires a more experienced home. All three types have loving and loyal personalities but can also be timid, making early socialization is a must.