The grazier would decide on the extent of crutching : the rear of the sheep is almost always shorn, whereas wool around the face, ears, underside and pizzle may also be removed depending on the circumstances such as the weather, length of fleece, and amount of seed or other impurities present in the fleece and the underlying reason for crutching ( preventative of fly-strike, or to reduce the likelihood of stain in the fleece wool ).
