Must have size and stamina. Capable of great speed. Proud and confident. Loyal and affectionate to owners, but wary of strangers when mature. Large, but in proportion to body, broad between ears, slightly domed, with slight stop.
Mature males have broader head than females.
Seen from above almost rectangular. Profile blunt, tapering very slightly to end. Black, except in livers, where it is brown. Very slightly pendulous, black-edged. Edge of upper lip not lower than the profile of the underjaw.