As you may know for yourself, Chihuahuas are one of the most loyal and friendly dogs, with their quirky and eccentric nature often defining their personality. However, in their native country of Mexico, Chihuahuas have always been considered to be one of the most effective hunters of smaller prey. To this day, domestic Chihuahuas still possess those innate hunting instincts. All you need to do is understand how to release these dormant traits.
It is important to not start training your dog to hunt too early as this may cause him to develop a more aggressive nature in later life. However, you also don't want him to become set in its ways. So as he is approaching adulthood is often a good time to start. Keep in mind a dog can mature physically and mentally at different rates.
As hunting is the name of the game, you will also need something for your Chihuahua to hunt! To begin with, this should be fake prey while he gets used to the situation and learns hunting techniques.