[QUOTE=tis;185329]We have also sent the remote control boat out after them. The trouble is, all this scares them away but they come back. QUOTE]
You could also use a remote control
TIGER Tank. They are excellent vehicles and fun to drive around your property. BUT... you need to have firepower added. Find a model builder who would build one for you. Maybe a 22 Cal. tank mounted gun. This would likely cost well over $1000. BUT: IT Would be FUN.
NB