How to identify good and bad Border Collie puppies

Border Collie puppies should have sufficient bone mass, a large head but well-balanced overall proportions, thick and powerful paws, a mouth that is not too long, and almond-shaped eyes. The face should be square in front, and the ears can be folded one-quarter to three-quarters or fully erect. The amount of hair should be sufficient, the tail should droop naturally, the forehead should be obvious, the front drive should be straight, and the rear drive should be angled. Otherwise, a Border Collie puppy is not good.