Since these wild animals consume agricultural products including the Tanba chestnut, one of the specialty goods of Fukuchiyama, in some years they have sometimes caused serious damage to farmers; as a result, there is an incorporated nonprofit organization seeking joint owners for a 'cage.'
福知山の特産品である丹波栗などを含む農作物が狙われ、年度によって深刻な被害を農家へもたらすこともあり、檻の共同オーナーを募集するNPO法人も存在する。