I have a Jack Russell that I use for hunting pretty much everything, and I can tell you that you don't teach them to hunt...they teach you! The JRTCA has worked hard to preserve the hunting and working qualities of all Jack Russells. My JRT caught his first gopher at only 12 weeks.

Focus on obedience training, and allow the dog's natural abilities to come through. Spend a lot of time teaching the "come" command, and teach it again and again and again. There's nothing worse than watching your dog chase a rabbit or squirrel towards a busy road...and terriers are extremely difficult (if not impossible) to call off game.

Good luck! JRT's are great pets.