More: Tank is an AKC agility dog weighing in at 4 pounds. He made it to the Excellent level before Covid. ......While we don't run agility any more due to Covid and not wanting to be indoors in crowds......we have always taken the two dogs on our hikes in the gorgeous state of Missouri since they were old enough to get outside. While most people think tiny Yorkies are just sweet house dogs, these two love to tromp through streams and mud and have a blast.