To tell whether a Border Collie is pure, look at the eyes

The Border Collie’s eyes are moderately distanced, medium in size, oval, and usually brown. Except for marble, blue eyes in dogs of other colors are considered a fault. There is colored coat completely surrounding the eyes.

To tell whether a Border Collie is pure or not, look at the ears

If the ears of a two-month-old Border Collie still don’t stand up at all, it’s time to determine whether they have string. This kind of Border Collie has big ears like golden retriever when it grows up.

The difference between whether a Border Collie is pure or not depends on its mouth

Border Collies and Shetland Sheepdogs are quite similar. The mouths of shepherd dogs are relatively long, but if we compare Border Collies and Su Mu In other words, Su Mu's mouth shape is slightly longer, while Bian Mu's mouth is shorter and rounder, with a "U" shape, which makes Bian Mu more energetic and bold.

The difference between whether Bian Mu is pure or not depends on the face shape

Bian Mu’s face is curved, giving people a more curved feeling, while Su Mu and Xiao Xi’s faces are straight. From the top of the head to the tip of the nose, there is an obvious sunken "bend" in the middle part of the eyes of Border Collies. However, the little Border Collie of Su Mu Chuan may not be obvious after about two months.

The difference between whether a Border Collie is pure or not depends on its body shape

Generally speaking, the size of a Border Collie is 48-53cm long for male dogs and 46-51cm long for female dogs. When the Border Collie was young, the body shape was relatively round, while As the puppy grows up, it will become more slender. If the overall shape of the puppy looks thinner and the legs are more slender, then there is a possibility that it is a string.