ers , ▁w ool ▁roll ers , ▁r ouse about s , ▁w ool ▁class ers ▁and ▁she ar ers . ▁ ▁W ool ▁removal ▁A ▁sheep ▁is ▁caught ▁by ▁the ▁she ar er , ▁from ▁the ▁catch ing ▁pen , ▁and ▁taken ▁to ▁his ▁" stand " ▁on ▁the ▁she aring ▁board . ▁It ▁is ▁sh orn ▁using ▁a ▁mechanical ▁hand pie ce ▁( see ▁She aring ▁devices ▁below ). ▁The ▁w ool ▁is ▁removed ▁by ▁following ▁an ▁efficient ▁set ▁of ▁movements , ▁de vised ▁by ▁God f rey ▁Bow en ▁in ▁about ▁ 1 9 5 0 ▁( the ▁Bow en ▁Te chni que ) ▁or ▁the ▁T ally - Hi ▁method ▁developed ▁in ▁ 1 9 6 3 ▁and ▁promoted ▁by ▁the ▁Australian ▁W ool ▁Corporation . ▁She ep ▁struggle ▁less ▁using ▁the ▁T ally - Hi ▁method , ▁reducing ▁stra in ▁on ▁the ▁she ar er ▁and ▁there ▁is ▁a ▁saving ▁of ▁about ▁ 3 0 ▁seconds ▁in ▁she aring ▁each ▁one . ▁ ▁The ▁she ar er ▁begins ▁by ▁removing ▁the ▁bel ly ▁w ool , ▁which ▁is ▁separated ▁from ▁the ▁main ▁fle e ce ▁by ▁a ▁r ouse about , ▁while ▁the ▁sheep ▁is ▁still ▁being ▁sh orn . ▁A ▁professional ▁or ▁" gun " ▁she ar er ▁typically ▁removes ▁a ▁fle e ce , ▁without ▁significantly ▁mark ing ▁or ▁cutting ▁the ▁sheep , ▁in ▁two ▁to ▁three ▁minutes , ▁depending ▁on ▁the ▁size ▁and ▁condition ▁of ▁the ▁sheep — less ▁than ▁two ▁minutes ▁in ▁el ite