Wire Fox Terrier Breed Standard
Terrier Group

General Appearance
The Terrier should be alert, quick of movement, keen of expression, on the tip-toe of expectation at the slightest provocation. Character is imparted by the expression of the eyes and by the carriage of ears and tail.

Bone and strength in a small compass are essential, but this must not be taken to mean that a Terrier should be "cloddy," or in any way coarse--speed and endurance being requisite as well as power. The Terrier must...