head must be moderate and in balance with other proportions of the dog,
yet strong enough to protect the dog from injury while working
livestock. It should not be coarse or snipy in appearance. The sex of
the dog should be clearly evident by looking at the head.
measurement, the width and length of the
skull should be approximately the same as that of the length of the
major features of the head should transition smoothly together
without abrupt stops or hard angles. The
planes of the skull should be slightly oblique to each other. This
structure reduces the potential for injury should a hoof
graze off the skull while working in close quarters.
topskull is flat to slightly curved between the ears. It should
not appear domed.
backskull connects smoothly
into the muzzle with a moderate, but definite stop.The
well filled in under the eyes, tapering gradually to form a medium
muzzle shaped like an oblique wedge.
underjaw should be well developed without being squared off.
skin of the head should be tight fitting, without any evidence of loose
flews, drooping lids or wrinkling about the cheek and muzzle.The lips of the Australian Shepherd
to be tight and clean, without excessive looseness at the
corners or overhanging flews at the front of the mouth. A significantly
wet mouth resulting from loose lips