I've heard the old saying, "can't teach an old dog new tricks" but I was just wondering, how old is old? My lab is 2 yrs. old, and she knows the basics, sit, stay, stuff like that. However, she has never had any training as far as retrieving birds is concrened. She likes to play fetch and seems to have a natural instinct for it (won't quit until she finds what she is looking for). Is she still trainable? If so, I would appreciate any advice anyone has for someone just getting started. I'm not looking for a champion, just a good hunting partner.