I agree with the other dog owners who said that it is in their nature. Dachshunds were bred to hunt small game, and to your dog, chickens and chinchillas are small game. I have a pug/terrier mix (blaming the terrier here) that can't be around the chickens for the same reason.
Your dog is not being bad, it is doing what instinct tells it to. Just like I have to be careful and keep my pug/terrier (Perrier?) away from my chickens, you will have to keep the doxie away from small critters.
Your dog is not being bad, it is doing what instinct tells it to. Just like I have to be careful and keep my pug/terrier (Perrier?) away from my chickens, you will have to keep the doxie away from small critters.