Tbh most of terriers would be stuck into them end of the year we do let vixens go it's not really pest control for me it's just working dogs giving them plenty as I say each to there own on it bangers but how many hares can you let go after a lurcher catches them or deer and if you wernt out to kill them what's the point in being out lol I let one run one time and the farmer seen it he wasn't a happy camper over it one bit lol