For such coexistence come to fruition, and due to shortage of shepherd men who were at any particular time, and the number of heads could be high, it was necessary to resort to a helper who will control cattle to temptation, and this was the Carea Leonés.

[5] Their coat is smooth and short or moderate length and slightly wavy, and ranges from black to dark liver or merle with white and or tan trim.

This is an important detail and valued by shepherds, and the dog should be strong with some bite to the respect earned it by the cattle so it can control a large number of sheep and impose to the size of cows or mares, with the possibility of receiving a kick.

In mountain areas these are used more for that type of cattle and take to the home the sheep, for the large herds spend most of the year, in the plain, paramos and shores where the carea is needed.

[8] The Carea Leonés can compete in dog agility trials, obedience, showmanship, flyball, tracking, and herding events.